RSA 265:37-a Motorist Duties When Approaching Highway Emergencies.

I. When in or approaching an incident involving a fire, collision, disaster, utility construction or maintenance, or other emergency resulting in partial or complete blockage of a highway, or a location where a police officer has made a traffic stop, or a stopped or standing vehicle displaying warning signals, including vehicle hazard warning lights, road flares, traffic cones, caution signs, or any nonvehicular warning signs, every driver other than the driver of an emergency response vehicle, shall:
(a) Maintain a reduced speed and if practical give a wide berth, without endangering oncoming traffic, to public safety personnel, any persons in the roadway, and vehicles displaying blue, red, or amber emergency, warning lights, or a stopped or standing vehicle.
(b) Obey t