Illumination of signs is permitted, subject to the following requirements:
(A) No sign shall employ red, yellow, or green lights in such a manner as to confuse or interfere with vehicular traffic.
(B) No sign other than those providing time and temperature information shall have blinking, flashing, or fluttering lights or any other illuminating device which has a changing light intensity, brightness, or color; provided, however, that this provision shall not apply to any message on any electronically-operated, changeable sign.
(C) The light from any illuminated sign shall be shaded, shielded, or directed so that it creates neither a nuisance to adjacent property nor a traffic hazard.