The following restrictions shall apply to all advertising signs, displays and devices erected and maintained adjacent to any roads within the state road system, including federal-aid interstate and primary roads.
(1) No advertising sign shall be erected or maintained which involves rapid motion or rotation of the structure or any part thereof: Provided, That an advertising sign that does involve motion or rotation which is not rapid to effect changeable messages shall be permitted in accordance with legislative rules to be proposed by the Division of Highways of the Department of Transportation in accordance with the provisions of article three, chapter twenty-nine-a of this code;