311.05 QUIET ZONES.

   (a)   The City Manager may designate zones of quiet upon any highway within 250 feet of property on which any hospital, school, court, church, asylum, or other like institution, and when any 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 the zone.

   (b)   Whoever violates this section is guilty of a minor misdemeanor on a first offense; on a second offense within one year after the first offense, the person is guilty of a misdemeanor of the fourth degree; on each subsequent offense within one year after the first offense, the person is guilty of a misdemeanor of the third degree.