The City Council may by resolution designate loading zones on property as may be necessary in order that commercial vehicles may safely load and unload vehicles. When a loading zone has been designated, it shall be marked by a sign bearing the words "LOADING ZONE, NO PARKING". Thereafter, no person shall park a vehicle at such location unless in the process of loading or unloading. Violators shall be guilty of a petty misdemeanor and are subject to towing. (Ord. 431, sec. 1, 2-19-91)