The board of aldermen is hereby authorized to erect such signs as they shall think proper giving notice of the parking regulations provided for in this article and in any other ordinance hereafter passed regulating traffic. In order to enforce the provisions of this article, city employees as designated by the board of aldermen are hereby authorized and empowered to impound, tow, have towed, and/or mark with chalk on the tires of any vehicle standing next to the curb, designating the time any such vehicle is found parked on the street, and such other mark or action authorized by the board of aldermen as they shall think proper. No person shall erase any such marks while the vehicle remains standing at the same location. (Code 1953, § 10.78; Ord. No. G-92-30, § 1, 7-9-92; Ord. No. G-93-13, § 1, 6-17-93)