Whenever authorized signs are erected indicating a Zone of Quiet in the vicinity of any school, church, or hospital, no person shall cause, or permit to be caused, any unnecessary noise or sound the horn or other warning device of a motor vehicle, except in the case of an emergency, upon, the streets or alleys within any such Zone of Quiet that disturbs or unduly annoys the patients of any hospital or the pupils of any public or parochial school or which unreasonably interferes with the working of such institution.
(Ord. 92-5959. Passed 11-10-92.)