MADISON, Wis. — A Madison public employee who visited South Dakota for a convention violated the city’s vehicle use policy by sightseeing on the trip with an unauthorized passenger, an internal investigation found.

The employee, whose name was not disclosed, was issued a warning letter and ordered to engage in a corrective action plan, Madison Assistant City Attorney Roger Allen told Wisconsin Reporter.

The Madison Traffic Engineering Department employee agreed to pay an estimated $200 for fuel and was charged  vacation time for the side excursion, Allen said.