The immunity from antitrust liability afforded to local governments by the provisions of Code Sections 36-65-1 and 36-65-2 shall not apply to public providers in the offering and providing of services as defined in this chapter; and public providers shall be subject to applicable antitrust liabilities, subject, however, to the provisions of the federal Local Government Antitrust Act of 1984, 15 U.S.C. Sections 34-36.