You are traveling in the right lane of a four-lane highway. You see an emergency vehicle pulled over with its lights flashing ahead. What should you do?

To pass a stopped emergency vehicle, you must move into a non-adjacent lane if it is possible and safe to do so, leaving at least one vacant lane between you and the emergency vehicle. If this cannot be done safely, slow down to a reasonably safe speed as you pass. This rule also applies to maintenance vehicles, construction vehicles, and tow trucks if their flashing lights are activated. [Passing Parked Emergency/Service Vehicles, Chapter 4 Sharing the Road, Minnesota Driver's Manual]