Final answer:
The driver of an unpermitted vehicle should stop moving and become stationary until an ambulance has passed, adhering to common traffic laws that prioritize emergency vehicles.
Step-by-step explanation:
The correct response for the driver of an unpermitted vehicle being escorted when an ambulance is approaching is to stop moving and become stationary until the ambulance has passed by. It is a common traffic law requirement for vehicles to yield to emergency vehicles, such as ambulances, fire trucks, and police cars, that are responding to emergencies. The driver should pull over to the side of the road if possible and wait until the ambulance has passed and it is safe to resume driving.
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