S.C. Code Ann. § 13-15-50

The Tri-County Coliseum Commission is authorized to promulgate regulations governing the use of roads, streets, parking facilities and all other facilities upon the lands of the Tri-County Coliseum Commission. Such regulations are declared to be applicable to the roads, streets and parking facilities under the control of the commission. All regulations promulgated by the Commission shall be in accordance with the provisions of chapter 23 of title 1.