No person not duly authorized shall strike, hit, or in any way ring or cause to ring a fire-warning bell or bells within a building, hallway, room, or area within any public building, school, dormitory, classroom, industrial establishment, mercantile, institutional occupancy, hotel, motel, apartment, or place of assembly, except in case of actual fire or probable cause for fire.
(1980 Code, § 93.11) (Ord. 3071, passed 1-3-1974) Penalty, see § 93.99