(a) Neither this chapter nor anything contained in this chapter shall be construed as a restriction or limitation upon any powers which an authority may otherwise have under any laws of this state, but shall be construed as cumulative of any such powers.
(b) No proceedings, notice or approval shall be required for the organization of an authority or the issuance of any bond or any indentures or instruments as security therefor, except as provided in this chapter, any other law to the contrary notwithstanding; provided, that nothing in this chapter shall be construed to deprive the state or its governmental subdivisions of their respective police powers over any properties of the authority or to impair any power thereover of any official or agency of the state or its governmental subdivisions which might be otherwise provided by law.