S.C. Code Ann. § 58-17-2700

All railroad corporations whose tracks shall be so connected shall transfer to any railroad track any car upon demand of the consignee or owner of the freight in such car, at such transfer charges as may be fixed by the Commission, not to exceed one dollar per car in any case, empty cars to be returned free. Failure to comply with the written demand of the consignee or owner within twenty-four hours shall subject the railroad corporation so failing to a penalty of one dollar per hour so long as such failure may continue, to be deducted from the freight bill of such owner or consignee or to be recovered by an action of law, unless it be determined by the jury to be reasonably impracticable for such railroad corporation to make such transfer within such time.