No person in a park shall:
(A) Fireworks and explosives. Have in his possession or set off or otherwise cause to explode or discharge or burn, any firecrackers, torpedo, rocket, or other fireworks or explosives of inflammable material, or discharge them or throw them into such area from land or highway adjacent thereto. This prohibition includes any substance, compound, mixture, or article that in conjunction with any other substance or compound would be dangerous from any of the foregoing standpoints.
(B) Reservation of facilities. Occupy any seat or bench, or enter into or loiter or remain in any pavilion or other park structure or section thereof which may be reserved and designated for the use of the opposite sex. Exception is made for children under four years of age.
(C) Fires. Build or attempt to build a fire except in designated or signed areas. No person shall drop or throw, or otherwise scatter lighted matches, burning cigarettes or cigars, tobacco paper, or other inflammable material, within any park area or on any highway, road or street abutting or continuous therein.
(D) Closed areas. Enter an area posted as "Closed to the Public" nor shall any person use, or abet the use of any area in violation of posted notices.
(E) Loitering and boisterousness. Engage in loud, boisterous, threatening, abusive, insulting, or indecent language, or engage in any disorderly conduct or behavior tending to a breach of the public peace.
('69 Code, § 6.34, Subd. 7) Penalty, see § 10.99