The provisions of this chapter shall be deemed to provide a complete, additional, and alternative method for doing the things authorized herein and shall be regarded as supplemental and additional to powers conferred by other laws; the issuance of revenue bonds and revenue refunding bonds under the provisions of this chapter need not comply with the requirements of any other laws applicable to the issuance of bonds. Activities conducted pursuant to cooperative agreements approved and supervised by the Commissioner are immunized from challenge or scrutiny under the Commonwealth’s antitrust laws. It is the intention of the General Assembly that this chapter shall also immunize cooperative agreements approved and supervised by the Commissioner from challenge or scrutiny under federal antitrust law. Except as otherwise expressly provided in this chapter, none of the powers granted to the Authority under the provisions of this chapter shall be subject to the supervision or regulation or require the approval or consent of any locality or any authority, board, bureau, or agency of any of the foregoing. Nothing in this chapter shall affect the authority of the Attorney General to conduct appropriate reviews under Chapter 20 (§ 32.1-373 et seq.) of Title 32.1.