It shall be unlawful for the operator of any vehicle to park or stop such vehicle for any purpose other than the loading or unloading of passengers; provided, however, no stop for the loading or unloading of passengers shall be made for more than three (3) minutes in any of the following places:
(a) For a distance of thirty (30) feet along any curb at the main entrance to any hotel;
(b) At any curb in front of any portion of the main entrance and outside vestibule of any theater during any time such theater is open for public performance; and
(c) In any passenger loading zone designated by the City Engineer; provided, however, such passenger loading zone shall be designated by white painted curb markings or signs.
(§§ 7143, 7143.1, 7143.2, and 7413.3, T.O.O.C., as amended by § I, Ord. 489-NS, eff. August 22, 1974, and § II, Ord. 538-NS, eff. August 21, 1975)