The Greater Municipality Parking Law, without reference to other statutes of the state, shall constitutes [constitute] full authority for the authorization and issuance of bonds hereunder. No other act or law with regard to the authorization or issuance of bonds that provides for an election requires an approval or in any way impedes or restricts the carrying out of the acts herein authorized to be done shall be construed as applying to any proceedings taken hereunder or acts done pursuant hereto.