It is unlawful to disturb in any manner any picnic, meeting, services, concert, exercises, exhibition, athletic events, special events or organized class, or to indulge in riotous, boisterous, threatening or indecent conduct or abusive, threatening, profane or indecent language in any City park, recreation facility or recreation area. (Ord. 3322 § 1, 2014; Ord. 2651 § 1, 1995; Ord. 1557 § 1, 1974; Ord. 1179 § 1 Art. 3; Ord. 857 § 2(N); prior code § 21.3.2(17)).