(1) Any contract, lease, or special use permit executed may require the payment of fees to the department of transportation. Services may be accepted in lieu of fees, but only by prior agreement. No services will be applied to past fees incurred.

(2) All fees collected under this section by the department of transportation will be credited towards maintenance of all state airports.

(3) Fees for commercial operations will be commensurate with the value of the opportunity to do business on or at the airport and the services and facilities furnished by the state at the airport for which no separate charge is made.