(625 ILCS 5/11-311) (from Ch. 95 1/2, par. 11-311)
    Sec. 11-311. Interference with official traffic-control devices or railroad signs or signals.
    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.
    Every person who is convicted of a violation of this Section shall be guilty of a Class A misdemeanor, punishable by a fine of at least $250 in addition to any other penalties which may be imposed.
(Source: P.A. 83-672.)