Sydney Zandi's late winner sealed the Nittany Lions' second consecutive home defeat.
The Nittany Lions held their No. 13 ranking in the AP Top 25 poll after beating Pitt 17-10 on Saturday afternoon at Beaver Stadium.
The officer involved was off-duty when the incident occurred at about 7 p.m. Saturday in Patton Township.
Fowler, who was in town to call Penn State's game against Pitt, wasn't short on praise for Beaver Stadium throughout the weekend.