All vehicles shall be subject to the standing, stopping, and parking provisions of chapter 3 of this title, with the following exceptions:
A. City police or fire vehicles.
B. Private ambulance responding to an emergency situation.
C. City vehicles and public utility vehicles when necessary for use in construction, repair, or maintenance functions.
D. Any vehicle owned or operated by the United States postal service while in use for the collection, transportation, or delivery of United States mail. (1962 Code § 3-6.307; amd. Ord. 97-O-2279, eff. 5-9-1997)