(a) A person commits an offense if he places, maintains, or displays, upon or in view of a highway, any unauthorized sign, signal, marking, or device which purports to be, is an imitation of, or resembles an official traffic control device or railroad sign or signal, or which attempts to direct the movement of traffic, or which hides from view or interferes with the effectiveness of an official traffic control device or a railroad sign or signal, or which warns or attempts to warn the operator of a vehicle of speed control enforcement being conducted on the highway.
(b) A person commits an offense if he places or maintains, upon any highway, an official traffic signal or sign on which commercial advertising is printed. This section shall not prohibit the erection of signs of a type which cannot be mistaken for official signs upon private property adjacent to highways. (Ord. 14584)