Neither this chapter nor anything contained in this chapter is construed as a restriction or limitation upon any powers which the authority might otherwise have under any laws of this State, but is construed as cumulative.

Notwithstanding any provision of law or regulation to the contrary, the authority shall continue to be an "agency" for purposes of Chapter 78 of Title 15, but the authority is not considered an "agency" or "state agency" or any other form of state institution for purposes of §§ 2-7-65 and 2-57-60.