It is unlawful to obstruct or permit the obstruction of any stairway, aisle, corridor or exit in any office building, factory, hotel, school, church, theater, assembly hall, lodge, or other public hall, or any building used by two or more tenants or families, in such a manner that it interferes with the free use of such stairway, aisle, corridor or exit.
(‘82 Code, § 9.44.010) Penalty, see § 130.99