Except in an area designated with signage by the Director of Public Works for that purpose, or authorized by permit from the Director of Recreation or their designees, it is unlawful to operate any model airplane, model car, go-cart, sky lanterns, fighting kites, drones or similar self-propelled device, toy or model within any City park or recreation area. (Ord. 3322 § 1, 2014; Ord. 2651 § 1, 1995; Ord. 1557 § 1, 1974; Ord. 1179 § 1 Art. 3; Ord. 857 § 2(L); prior code § 21.3.2(16)).