(a) For the purposes of sections 169.751 to 169.753 the following words have the meanings given.
(b) "First aid equipment" means equipment for the purpose of rendering first aid to sick or injured persons as prescribed by the Department of Public Safety for its State Patrol vehicles, including materials for the application of splints to fractures.
(c) "Patrol motor vehicles" means the State Patrol motor vehicles used in law enforcement of the Department of Public Safety, the county sheriffs, and the various city, town, and other local police departments.