The City Manager may designate zones of quiet upon any highway within 250 feet of any hospital, school, court, church, asylum, or other like institution; and when any such zone is so designated by official traffic signs, it shall be unlawful therein to blow a horn or a whistle or to make or cause any outcry or any avoidable noise or clamor likely to disturb persons within such zone.
('91 Code, § 72.020) (Ord. 1901-1954, passed 1-21-54) Penalty, see § 70.99