When signs are placed, erected or installed in each block giving notice thereof, no person shall park a vehicle between those hours upon any of those streets unless other hours are designated; provided that, this section shall not apply to automobiles or other vehicles parked on those streets when the owners thereof are at work in the building or on the premises in front of or near which the automobile or other vehicles are parked.
(Prior Code, § 72.02) Penalty, see § 70.99