§ 373. Agreement of the state. 1. The state does pledge to and agree with the holders of notes, bonds, or other obligations of the authority not guaranteed by the state that the state will not limit or alter the rights hereby vested in the authority to establish and collect such fees, rentals and charges as may be convenient or necessary to produce sufficient revenue to meet the expense of maintenance and operation and to fulfill the terms of any agreements made with the holders thereof, or in any way impair the rights and remedies of such holders until such notes, bonds, and other obligations, together with the interest thereon, with interest on any unpaid installments of interest, and all costs and expenses in connection with any action or proceedings by or on behalf of such holders, are fully met and discharged.

2. The state does pledge to and agree with the holders of any notes or bonds of the authority, not guaranteed by the state, secured by a pledge of the tolls or other revenues or any part thereof from any bridge constructed by the authority across the Hudson river south of Bear mountain bridge or from any part of the thruway which includes such bridge, that no bridge or tunnel constituting a connection for vehicular traffic over, under or across the Hudson river between the present location of the Bear mountain bridge and the boundary line between the state of New York and the state of New Jersey at the west side of the Hudson river will be constructed or maintained so long as the obligations of such bonds for principal and interest shall not have been paid or otherwise discharged.