Whenever quiet zones have been established and signs erected to indicate the same, it shall be unlawful for any person to sound the horn or warning device of any vehicle except in an emergency, or to race the motor, or make any other unnecessary noise in the streets or alleys within those zones.
(1990 Code, § 28-457) (Ord. 79-690, passed 9-17-1979) Penalty, see § 70.999