A. Every motor vehicle shall be equipped with a good and sufficient audible signalling device in efficient working condition. The signalling device shall be sounded when necessary to give timely warning of the approach of a vehicle, but such horn or other signalling device shall not be sounded for any purpose other than as a warning of impending danger.

B. No motor vehicle other than an emergency vehicle shall be equipped with a siren or gong signalling device. (Ord. 8-1958 § 7.04, 1958)