Not pulling over and yielding when an emergency vehicle is coming with lights or siren.

"Emergency vehicle" usually means a police car, ambulance, fire truck, or other authorized responder running active warning equipment. "Stop" does not always mean slam on the brakes in the lane you are in; it means move out of the way safely, pull to the right if possible, and stay there until the vehicle passes. "Yield" matters because blocking an ambulance by hesitating, drifting, or refusing to move is enough to create the violation even before a crash happens.

The practical problem is simple: seconds matter. On roads like US-61 through the Delta, where there may be no shoulder, heavy truck traffic, and nowhere good to escape, bad decisions by one driver can trap everyone behind them. That delay can keep responders from reaching a wreck, a stroke patient, or a fire before things get much worse.

For an injury claim, this violation can be ugly evidence. If a driver failed to move for a siren and caused a collision, that behavior can help prove negligence and may support a stronger argument for fault. In Mississippi, drivers must yield the right-of-way and immediately drive to a position parallel to and as close as possible to the right-hand edge or curb under Mississippi Code § 63-3-809. A citation can also strengthen an insurance claim even if it does not automatically decide liability.