Sec. 30. A person who is licensed under this chapter or who is engaged in:
(1) the production, transportation, processing, or packaging of raw or pasteurized milk and milk products;
(2) the business of selling or distributing products described in subdivision (1) for human consumption; or
(3) the business of manufacturing containers for milk and milk products;
may not prevent the inspectors and agents of the board from performing official duties.