No person shall, without prior written approval of the parks division or authorized parks employee, explode, discharge or otherwise operate any noisemaking device or musical instrument, radio, loudspeaker, and other device capable of amplifying sound in any county park which substantially disrupts the peace and tranquility of park users or nearby residents. (Added by § 29 of Res. adopted Apr. 22, 1974; Amended by § 2 of Res. adopted Oct. 4, 1978; Amended by Ord. 86-001 § 2, Feb. 12, 1986; Amended by Ord. 93-066, Aug. 18, 1993, Eff date Aug. 28, 1993; Amended by Ord. 98-076 § 29, Aug. 19, 1998, Eff date Aug. 31, 1998).