"In general, the superior court's task when reviewing the grant or denial by a county board of a special use permit includes:
(1) Reviewing the record for errors in law, (2) Insuring that procedures specified by law in both statute and ordinance are followed, (3) Insuring that appropriate due process rights of a petitioner are protected including the right to offer evidence, cross-examine witnesses, and inspect documents, (4) Insuring that decisions of town boards are supported by competent, material and substantial evidence in the whole record, and (5) Insuring that decisions are not arbitrary and capricious. Mann Media, Inc. v. Randolph Cnty. Planning Bd., 356 N.C. 1, 13, 565 S.E.2d 9, 17 (2002) (quotation marks omitted).