No person shall park a vehicle upon any street, alley or roadway for the purpose of repairing or overhauling such vehicle, except for minimum repairs necessitated by an emergency; nor shall any person park any vehicle upon a street, alley or roadway for the purpose of displaying it for sale; nor shall any person park on any street within the business district any vehicle from which merchandise is peddled. (1960 Compilation § 17-1006; amd. Ord. 74-1; Ord. 80-4)