The state pledges and agrees with the holders of any bonds or notes that the state will not limit or alter the rights vested in the authority to fulfill the terms of agreements made with the holders or in any way to impair the rights and remedies of the holders until the bonds or notes together with the interest on them, plus interest on unpaid installments of interest, and all costs and expenses in connection with an action by or on behalf of the holders are fully met and discharged. The authority may include this pledge and agreement of the state in any agreement with the holders of bonds or notes.