No person shall without lawful authority attempt to or in fact alter, deface, injure, knock down, or remove any official traffic-control device or any railroad sign or signal or any inscription, shield, or insignia thereon, or any other part thereof.
('83 Code, § 70.03) (Ord. 0-12-76, passed 4-5-76; Am. Ord. O-19-99, passed 9-20-99) Penalty, see § 70.99