D.J. rolls up the passenger side window of the Gremlin in the garage, trapping Daffy's bill in the window. He then punches Daffy to "help" him get unstuck. In the next shot where D.J. pulls out of the garage, the passenger side window is now down.
DJ arrives at his home on a motorcycle, and he leaves it in his father's driveway. As he and Daffy are leaving the house in the gremlin, there is nothing in the driveway, and the motorcycle can be seen in the garage.
After you see the Duck get shot several times with a gun, Bugs Bunny enters the room, sits in a chair, and starts to repeatedly move his chair and hit Daffy Duck's chair. But if you look closely next to Bugs Bunny's chair, you'll see the top of a man's head, a person that seems to be moving Bugs Bunny's chair.
Daffy Duck is thrown out of Warner Bros. Studios. As a consequence of Daffy's reckless actions, D.J. is also thrown out. He follows D.J. home and finds an issue of "The Hollywood Reporter", detailing the events that just occurred earlier that day, even though D.J. had just gotten home.