Any county hospital operated and maintained pursuant to a lease as authorized by the Hospital Funding Act which has mill levies levied and collected for its maintenance and operation pursuant to that act may expend those funds for the operation and maintenance of the hospital and the use of the funds is declared to be an incidental benefit to the lessee which is far outweighed by the greater benefits to the public as a whole. The operation and maintenance of a county hospital under lease to the extent of and the use of the funds levied pursuant to that act is deemed to be funding to the hospital as a public institution, and the hospital facility and lessee thereof are subject to the laws of this state regarding the expenditures of public money and the auditing requirements of same and to the provisions of any rules or regulations as are required.