The charge for providing special emergency security services during a second call to an unruly gathering shall be calculated by the police department utilizing the hourly pay rate for each member of the public safety forces, and shall be adjusted from time to time to reflect changes in such hourly rates. Said charge may include the cost of providing equipment to the scene of the unruly gathering and the cost of repairing or replacing equipment damaged at the scene. The total charges payable under this section shall be the actual cost of providing the services but not less than one hundred dollars and not more than five hundred dollars, plus the cost of actual damages to town property, if any, for a single response. Additional visits to the same gathering shall be separately charged. (Ord. 447 § 1 (part), 1990)