For purposes of this section, the term “gross revenues” is defined as all fees and charges to customers for the rental of motor vehicles and all other activities and services performed in connection with its rental car business for passengers at Wichita Falls Regional Airport or Kickapoo Downtown Airport, including business conducted at the fixed base operator (FBO) or within a five-mile radius of the airport, including, but not limited to, reservations made through travel agencies and reservations made by telephone, on-line reservations, facsimile, telegraph and other means of communications, and including, but not limited to, all base, time, and mileage fees and charges from customers picked up at a city airport, plus all premiums and other fees and charges (regardless of how they may be denominated) for personal accident insurance coverage, personal effects insurance coverage, personal effects protection insurance coverage, liability insurance supplement, additional liability insurance coverage, and all other types and kinds of insurance coverages and policies (regardless of how they are denominated, regardless of the parties covered, and regardless of the risks insured against, plus all sums for insurance waivers, collision damage waivers, and loss damage waivers, whether cash or credit, and whether collected or uncollected, plus all sums or other fees and charges the rental car provider receives, or is entitled to receive, for refueling motor vehicles rented to customers) plus all sums or other fees and charges the rental car provider receives, or is entitled to receive, for the rental of any optional equipment such as cell phones, GPS devices, luggage or ski racks and infant seats, plus all sums or other fees and charges the rental car provider receives, or is entitled to receive, for additional drivers). Provided, however, that gross revenues shall not include:
(1) Federal, state or municipal sales tax separately stated and collected from customers by the rental car provider, whether now or hereinafter levied or imposed separately stated on the rental agreement and collected from customers of the rental car provider; or
(2) Any sums collected as customer facility charges (CFC).