Any person employed or appointed contrary to this subchapter, or to the rules established thereunder, shall be paid by the appointing authority so employing or appointing, or attempting to employ or appoint that person, the compensation agreed upon for any service performed under such appointment or employment, or attempted appointment or employment, or in case no compensation is agreed upon, the actual value of such services and any expenses incurred in connection therewith, and shall have a cause of action against such appointing authority, for such sum and for the costs of the action. No appointing authority shall be reimbursed by the state for any sums so paid or recovered in any such action.
Wis. Stat. § 230.41