When the guy misses Rosewood and puts his fist through the glass door, it breaks like ordinary plate glass (even though it studio glass). The glass in doors is required to be safety glass. Which breaks into thousands of tiny pieces, instead of the jagged shards that are seen in this scene.
In the last scene the front end of Rosie's GTO and rear end of Villa's police car are visible. The front end of Rosie's GTO has a Florida license tag displayed, but the State of Florida has only one license tag, which is displayed on the rear of the vehicle.