The provisions of Section 52-77 (Termination of Adult Establishments) shall not apply to any adult establishment that located within the Special Clinton District after October 25, 1995, and prior to May 11, 2011, and which, as of May 11, 2011, and June 14, 2011, was an existing use and conformed to all provisions of Section 42-01 (Special Provisions for Adult Establishments) applicable to M2-4 Districts.