Walk It Through: The Siren on the Two Lane
An ambulance from behind, a trooper on the shoulder, a plow with its lights on, and a railroad crossing with the gate down.
An ambulance with its siren and lights comes up behind the car on a city street.
Two things a person in this spot might do. Picking one shows what the law says about it.
Emergency vehicles, the move over rule and a gated crossing on one drive. A multi lane highway, where the rule is to change lanes, gets only a line on the page.
A practice walkthrough, not a prediction of how any real one will go. Legal information, not legal advice.