N.C. Gen. Stat. § 14-190.4

No person, firm or corporation shall, as a condition to any sale, allocation, consignment or delivery for resale of any paper, magazine, book, periodical or publication require that the purchaser or consignee receive for resale any other article, book, or publication which is obscene within the meaning of G.S. 14-190.1; nor shall any person, firm or corporation deny or threaten to deny any franchise or impose or threaten to impose any penalty, financial or otherwise, by reason of the failure or refusal of any person to accept such articles, books, or publications, or by reason of the return thereof. Violation of this section is a Class 1 misdemeanor.