(1)  The board of county commissioners shall determine the manner in which said ambulance service shall be operated and is empowered to make expenditures from the ambulance service fund for the purchase or lease of real property and the construction of buildings necessary in connection with said service, to acquire necessary equipment for the operation and maintenance of said service, and to pay necessary salaries.
(2)  A county that provides ambulance service pursuant to section 31-3901, Idaho Code, prior to July 1, 2020, may continue to operate under the authority of this section. However, no board of county commissioners may exercise the powers granted under this section for the first time on and after July 1, 2020.