In the scene where Gill is describing his escape plan (the one where they roll out the window with the baggies) it shows the baggy roll out the window into the bushes. Right before the baggy rolls out of the bushes towards the road, the Pizza Planet Truck from Toy Story 1 and 2 zooms across the street. (This might be hard to see unless you slow the DVD down, or you pause it on that exact moment).