The proceeds derived from the sale of bonds issued by the authority to finance Y2K expenditures shall be deposited in the State Treasury and shall be carried in a separate fund therein for the account of the authority, which shall pay therefrom the expenses of issuance thereof. The proceeds from the sale of bonds remaining after payment of the expenses of issuance thereof shall be retained in the fund and, until they are paid out, shall be invested by the State Treasurer at the direction of the authority in eligible investments which mature at such time or times as the state Finance Director shall direct. Monies in the fund, whether original proceeds from the sale of bonds or the proceeds of or earnings on the eligible investments, shall be paid out from time to time for the purposes of this division in orders or warrants issued by or on the direction of the state Finance Director. After the Finance Director has certified to the State Treasurer that there are no Y2K expenditures remaining to be paid, monies remaining in such special fund may be applied to the payment of any capital improvements, capital equipment, implementation programs, and aging programs as defined herein. If all capital improvements, capital equipment, implementation programs, and aging programs costs are expended as certified by the Finance Director, then any monies remaining in such special fund may be applied to the payment of any other costs or expenses for which the authority shall be authorized to insure authority obligations.