(a) If the secretary determines that the complaint is valid and the hay is unsafe, the secretary may require the seller of the hay to reimburse the filing fee to the person filing the complaint.
(b) The secretary also may collect from any seller of hay the costs incurred by the secretary, not to exceed two thousand five hundred dollars ($2,500), in conducting any investigation regarding the safety of whole hay sold by that seller if the hay is ultimately deemed to be unsafe.