The Confirmation

Patton Oswalt improvised the German Pancakes story on the walk back to the car. He did a few takes of the scene, and invented a different story each time.

At 1:29 of the movie Walt is driving down a residential street on his way to retrieve his tools, you can see the truck going in the opposite direction swerve into Walt's lane to avoid the film crew in the street. The two-tone gray Toyota truck (at 1:29:20) has Washington State license plates. This movie was set in Washington State, but was filmed in the Metro Vancouver, Canada, area; more specifically, Walt is living at 20657 (at 0:12:55) Dolman Street (at 0:02:15) which is in Maple Ridge, British Columbia, in the Metro Vancouver area, so the probability is high that the truck was part of the film shoot. If an error were committed then it was that they didn't use a telephoto lens or Steadicam so the camera could have been out of the way.