It is unlawful to park or leave parked any vehicle in any parking space within any City-owned or maintained off-street parking facility in a manner wherein the front wheel or wheels of said vehicle are nearer to the designated access opening for said parking space than the rear wheel or wheels of said vehicle provided signs are erected prohibiting back-in parking in said parking facility or said space. (Ord. 4149 § 4; July 27, 1980.)