No person shall stop, stand or park a vehicle for any purpose or length of time in a place marked as a loading zone during the hours of 8:00 a.m. to 6:00 p.m., Monday through Saturday, when the provisions applicable to such zone are in effect. However, for the legitimate purpose of picking up or delivering items or materials to businesses within one block of such a loading zone, operators of vehicles may park such vehicles in such zones for a period not to exceed fifteen minutes. (Ord. 1975-39. Passed 4-8-75.)