It is unlawful for any person either as employer, employee, principal or agent to do any of the acts hereinafter in this chapter specified within the exterior boundary lines of any park or recreation area in the City. (Ord. 2651 § 1, 1995; Ord. 1557 § 1, 1974; Ord. 1179 § 1 Art. 3; Ord. 857 § 2; prior code § 21.3.2).