For the purposes of this Chapter, the City’s Finance Department shall cause the person responsible for a loud and/or disorderly gathering or party to be billed the actual cost for the police services provided in responding to the disturbance and any other City and/or public safety expenses incurred (these costs shall include, but shall not be limited to, damages to City property and/or injuries to City personnel, and City administrative costs). The Police Department shall accumulate the costs of all services provided in responding to the disturbance and forward same to the Finance Department within fifteen (15) days of the disturbance for billing. Such bills shall be due and payable by the person who sponsored the gathering or party within thirty (30) days after the billing date.