In order to carry out this subtitle, the Secretary may enter during the usual hours of business, any packing shed, warehouse, cold storage, store, building, market, or any other place, carrier, conveyance, or vehicle at, in, or from which any apples are packed or sold, offered or exposed for sale to determine whether the provisions of this subtitle or the rules and regulations adopted under it are being violated. If the Secretary finds that the apples are possessed in violation of any provision of this subtitle, or any rule or regulation adopted pursuant to it, he may issue a written “stop-sale” order to the person violating it. Any person upon whom a “stop-sale” order is served may appeal to the Secretary in accordance with the rules and regulations the Secretary adopts.