After Homer is mocked by Lenny and Carl, there is an exterior shot of the Simpson house, where there is clearly no car in the drive. The scene immediately changes to an interior shot with the driveway in the window -- with both Marge's car and Homer's SUV in the drive.
When the headlights are acting as x-ray vision, Bart's entire lower body disappears for a second while he is complaining to Homer.
When Marge turns on her high-beams towards the garage door they reveal Bart in the kitchen going through her purse. The room directly behind the garage is actually the (rarely seen) rumpus room.
When Chief Wiggum tries to tear up Marge's license, he is unable to because he says it's laminated, so he tells Marge to do it, and she tears it up easily as if it's a piece of paper.