Notwithstanding § 13-7-208 or any other law to the contrary, a heliport operating as of April 23, 1992, that is in violation of § 42-8-102(a) is declared a public nuisance and shall be abated, removed or changed to conform with this chapter by July 1, 1994. Such heliports may continue to operate until that date provided:
(1) The heliport is not extended or expanded; and
(2) If the use of the land or any portion thereof as a heliport is discontinued for a period of six (6) months or changed, any future use of the land is in conformity with this chapter.