Many drivers pick up habits over the years that feel second nature but might actually land them with a fine or worse, in court. Whether it’s the urge to drive barefoot on a hot day or letting your car coast downhill in neutral to save gas, these behaviors may seem harmless. But across most U.S. states, they’re technically against the law or are heavily discouraged by traffic regulations. Staying informed not only keeps you safe but also helps avoid unexpected penalties. Let’s break down eleven surprisingly illegal habits that many drivers don’t even realize are on the wrong side of the law.
1. Rolling Through Stop Signs
Many drivers slow down at a stop sign but never come to a complete halt. Known as a “rolling stop” or “California stop,” this maneuver is illegal in every state. Traffic laws require you to come to a full stop behind the line, look both ways, and then proceed only when it’s safe. Failing to do so can result in a citation, and worse, it endangers pedestrians and other drivers. Police officers watch for this habit closely, especially in residential areas and near schools.
2. Coasting Downhill in Neutral
Some drivers shift into neutral while going downhill, thinking it saves fuel. In reality, modern engines use almost no fuel when coasting in gear. More importantly, coasting in neutral is illegal in many states, including California and Colorado, because it limits your control over the vehicle. You lose engine braking power and might struggle to respond quickly in emergencies. Driving laws prioritize safety and control, and coasting downhill simply isn’t worth the risk.
3. Driving Barefoot
It’s a popular myth that driving barefoot is outright illegal everywhere. Technically, no U.S. state explicitly bans barefoot driving. However, if you’re involved in an accident or stopped by police, and barefoot driving is deemed a contributing factor, you could be cited for careless driving. Some states may interpret it as unsafe depending on the situation. Driving in flip-flops or loose sandals can be even more dangerous due to slipping off the pedals, making secure footwear a smart choice.
4. Hanging Items from Rearview Mirrors
That air freshener or graduation tassel dangling from your mirror might seem harmless, but it’s actually illegal in many states. Laws in places like Minnesota, California, and Pennsylvania prohibit items that obstruct the driver’s clear view through the windshield. Obstructed vision is a serious safety hazard and could cause you to miss pedestrians, cyclists, or road signs. It’s best to keep the area around your windshield and mirrors completely clear.
5. Left-Lane Cruising
Many drivers believe that as long as they’re going the speed limit, it’s fine to stay in the left lane. However, most states have “keep right” laws, meaning the left lane is strictly for passing. If you’re driving slowly in the left lane and blocking faster traffic, you can be ticketed even if you’re not technically speeding. It’s not just about courtesy; it’s a legal requirement designed to keep traffic flowing safely.
6. Flashing Headlights to Warn of Police
Flashing your headlights to warn other drivers about a speed trap or cop ahead might seem like a friendly gesture, but it’s a legal gray area. Some states consider it protected under free speech, while others classify it as obstructing justice or interfering with law enforcement. States like New Jersey and North Dakota may allow it, but others like Florida and New York have ticketed drivers for this behavior. Check your local laws before flashing those brights.
7. Leaving a Vehicle Running Unattended
In colder regions, many people let their cars warm up before driving, but in several states, it’s illegal to leave a vehicle running and unattended. These laws are designed to reduce theft risk and cut unnecessary emissions. States like Ohio, Texas, and Minnesota can fine drivers who leave keys in the ignition with the engine running. If you want to warm your car, use a remote start system or stay inside it to avoid breaking the law and getting hit with a fine.
8. Using Headphones While Driving
Listening to music or podcasts through headphones might seem like a modern convenience, but in states like California, Virginia, and Louisiana, it’s either restricted or outright banned. The concern is that headphones block out important sounds like emergency sirens or car horns. Even if your state doesn’t ban it, it’s still a distraction and may affect your situational awareness behind the wheel. Stick to your car’s audio system for a safer ride.
9. Not Clearing Snow Off Your Roof
If you live in a snowy area, clearing only your windshield isn’t enough, and in many northern states, it’s illegal. Snow or ice left on the roof, hood, or trunk can slide off while driving, hitting other cars or causing accidents. States like New Jersey, Connecticut, and Pennsylvania have “snow removal” laws that require drivers to clear their entire vehicle before heading out. Skipping this step can mean fines, liability for damages, and serious safety risks for everyone on the road.
10. Turning Without Signaling
Forgetting to use your turn signal isn’t just rude, it’s illegal in every state. Laws require signaling before turns and lane changes, with the exact advance distance varying by state. Skipping this step can earn you a ticket and increase the risk of collisions. That small flick of the lever gives other drivers critical time to react, preventing confusion and accidents. It’s one of the easiest, most effective ways to keep the road safer for everyone.
11. Driving Too Slowly
While speeding gets all the attention, driving too slowly can be just as dangerous and illegal. Most states have “minimum speed” laws, particularly on highways, where driving too slow can disrupt traffic flow and cause accidents. If you’re in the left lane going well below the speed limit, especially without a reason like road conditions or mechanical issues, you could be pulled over. Drive at a safe, legal speed and stay in the appropriate lane for your pace.