§ 1978. Agreements of the state. The state of New York does pledge to and agree with the holders of the bonds and notes that the state will not limit or alter the rights hereby vested in the authority to acquire, lease, mortgage or dispose of real or personal property or any interest therein or construct, improve, enlarge, operate and maintain the project, to fix, establish and collect the rates, rentals, fees and other charges referred to in this act and to fulfill the terms of any agreements made with the holders of the bonds and notes, or in any way impair the rights and remedies of such bondholders and noteholders until the bonds and notes, together with interest thereon, interest on any unpaid installments of interest, and all costs and expenses in connection with any action or proceeding by or on behalf of the bondholders and noteholders are fully met and discharged.