Bicycles, when parked in the business district, shall be parked in zones or places designated and marked for that purpose. It shall be unlawful to park any bicycle along buildings in such a manner so as to interfere with pedestrians, or along roadways where they may interfere with traffic, or with persons getting into or out of motor vehicles. No person other than the owner or operator shall move, or in any manner interfere with, any bicycle properly parked, nor shall any person interfere, or in any manner hinder, any person from properly parking a bicycle, except that members of the police department and fire department may move, or, in the proper cases, prevent the parking of the bicycle, when, in the judgment of the policeman or fireman, his action is necessary in order to properly safeguard persons or property. (1977 Code)