It is unlawful for any person to stand, sit or lie down upon any sidewalk, or in the entrance of any church, hall, theater, place of public assemblage or other building open to the public in the city so as to, in any manner, hinder or obstruct such entrance or sidewalk, except to view a parade or similar event for which a permit has been issued. (Ord. 1487 § 1, 1967: 3210.57 --- Ord. 996 § 2 (part), 1959).