No vehicle operated in this state shall be equipped with any flashing red or white light or any combination of red or white lights which displays to the front of such vehicle except school buses, a passenger motor vehicle operated by a rural mail carrier of the United States postal service while performing the duties of a rural mail carrier, authorized law enforcement vehicles only when used in combination with a flashing blue light, and emergency vehicles used in firefighting, including ambulances, emergency vehicles used in firefighting which are owned or operated by the division of forestry, firefighting vehicles, rescue vehicles, privately owned vehicles of regular or volunteer firefighters certified in § 55-9-201(c), or other emergency vehicles used in firefighting owned, operated, or subsidized by the governing body of any county or municipality.