It is unlawful for any person to construct, erect, place, operate, maintain or permit to exist any icebox, ice dock, gasoline pump, gasoline storage reservoir, tire rack, tire tools or equipment, water hose connection, any mercantile business, or any tools, stand, equipment, merchandise or appurtenances thereof, aerials, poles or wires therefor, whether permanent or temporary, or any other obstruction, upon any part of any street, alley, boulevard, parkway, curbing or parking within the city. (1993 Code § 22-5)