(1) The purchaser of gasoline or diesel fuel for the operation of vessels excepted by section 71101 is entitled to a refund of tax paid on that gasoline or diesel fuel, upon filing a sworn claim with the department of treasury, upon forms prescribed and furnished by it, within 6 months from the date of purchase, as shown by the invoice. The retail distributor shall furnish a purchaser with an invoice showing the amount of gasoline or diesel fuel purchased, the date of the purchase, and the total amount of tax paid on the purchase. Each dealer or distributor shall keep a copy of the invoices issued for a period of 2 years subject to examination by the department of treasury. Each claim for refund shall have attached to the claim the original invoice received by the purchaser and, when approved by the department of treasury, the claims shall be paid out of the state waterways fund upon warrant of the department of treasury.

  (2) A person who makes a false statement in a claim or invoice presented to the department of treasury, or who presents to the department of treasury a claim or invoice containing a false statement, or who collects or causes to be paid to the person or any other person a refund without being entitled to the refund, shall forfeit the full amount of the claim and is guilty of a misdemeanor.