Have you ever noticed that the pizza truck: Pizza Planet from the movie “Toy Story” is present in every one of Pixar films. The Incredibles makes an exception though.
While some are easy to see, others are more difficult. Take a look.
When the redneck mother is beating Randall with a shovel, the truck is on the far left side of the screen. This is the same motor home that appears in A Bug's Life.