When the municipal public works is a motor vehicle parking facility, any municipality involved therein shall have the plenary power and authority, in order to help finance the same, to use any revenue derived from other parking meters or other parking facilities, unless such revenue is otherwise pledged to pay for such other parking meters or other parking facilities.
When the municipal public works is a jail facility used for municipal prisoners, any municipality involved therein shall have the power and authority, in order to help finance the same, to pledge, for a period not to exceed twenty years, the proceeds derived from the imposition of fines and fees.
When the cost of the municipal public works is to be paid by special assessment against the abutting property, represented by assessment certificates which constitute a lien upon such property and said assessment certificates are pledged by any municipality to retire revenue bonds issued and sold to pay the cost thereof, the payor of such assessment certificate shall have the right to pay the same at any time before maturity, together with interest thereon to date of payment, and upon the payment of such assessment certificate the treasurer of such municipality shall deliver to the payor a release for such lien, and the funds received therefrom shall by said treasurer be deposited in a special fund to be expended only in the payment of such revenue bonds.