It shall be unlawful for the driver of a vehicle to stand a passenger vehicle for a period of time longer than is necessary for the loading or unloading of passengers, not to exceed 5 minutes, and for the driver to stand any freight-carrying vehicle for a period of time longer than is necessary to load, unload, and deliver materials, not to exceed 30 minutes, in any place designated by the council as a loading zone and marked as such.
('69 Code, § 19-49) Penalty, see § 70.999