Whenever the consignee of any product which bears an official inspection legend refuses to accept delivery of such product on the grounds that it is adulterated or misbranded, the consignee shall notify the Inspector in Charge, Meat and Poultry Inspection Program, Food Safety and Inspection Service, U.S. Department of Agriculture, of the kind, quantity, source, and present location of the product and the respects in which it is alleged to be adulterated or misbranded, and it will be a violation of the Act for any person to sell or transport, or offer for sale or transportation, or receive for transportation, in commerce, any such product which is capable of use as human food and is adulterated or misbranded at the time of such sale, transportation, offer, or receipt: Provided, however, That any such allegedly adulterated or misbranded product may be transported to the official establishment from which it had been transported, in accordance with § 325.10 of this subchapter.