In this episode (the first of season one), Mother's Place is trashed. The same thing happens in the first episode of season two.
In the final shootout, a cop/actor jumps from the drivers side of a police car and starts shooting. Unfortunately, he neglected to set the parking brake. At first it looks intentional, as he uses the rolling car for cover, but the camera cuts the scene just as he seems to realize he has a problem and is about to try to get in and stop the car before it hits the wall.