No person shall offer or give to a member or employee of a governmental agency, board, or commission that regulates a business with which the person is associated, and no member or employee of a regulatory body, shall solicit or accept a thing of value while the member or employee is associated with the regulatory body other than in the ordinary course of business. In addition to the foregoing, the Commissioner of the Department of Agriculture and Industries and any candidate for the office of commissioner may not accept a campaign contribution from a person associated with a business regulated by the department.