The reserve funds of the authority, as provided for in section 22a-272, shall be paid to the Treasurer of the state as agent of the authority, who shall not commingle such moneys with any other moneys. Such moneys shall be deposited in a separate bank account or accounts. The moneys in such accounts shall be paid by checks signed by the Treasurer of the state on requisition of the chairman of the authority or of such other officer or employee or officers or employees of the authority as the authority shall authorize to make such requisition. Notwithstanding the foregoing, the authority shall have power, subject to the approval of the Treasurer of the state, to contract with the holders of any of its bonds or notes, as to the custody, collection, securing, investment and payment of any reserve funds of the authority, or of any moneys held in trust or otherwise for the payment of bonds or notes, and to carry out such contracts. Any officer with whom, or any bank or trust company with which such moneys shall be deposited as trustee thereof shall hold and apply the same for the purposes thereof, subject to such provisions as this chapter and the resolution authorizing the issue of the bonds or notes or the trust agreement securing such bonds or notes may provide.