The provisions of this article do not apply to:
- (1) a driver or occupant who possesses a written verification from a physician that he is unable to wear a safety belt for physical or medical reasons;
- (2) medical or rescue personnel attending to injured or sick individuals in an emergency vehicle when operating in an emergency situation as well as the injured or sick individuals;
- (3) school, church, or day care buses;
- (4) public transportation vehicles except taxis;
- (5) occupants of vehicles in parades;
- (6) United States mail carriers;
- (7) an occupant for which no safety belt is available because all belts are being used by other occupants;
- (8) a driver or occupants in a vehicle not originally equipped with safety belts.