The scene in the Del Fuegos bar when Woody was squinting was almost entirely improvised. The cast had done the scene a couple of times and would ad-lib occasionally. One time John Travolta just started squinting in a Clint Eastwood impression. The other characters' reactions were real. They were expecting John to say his lines but kept going with it.
Maggie's Diner was built in Madrid, NM for the film, but the producers were asked to leave the building standing when filming was complete. It is now a gift shop that sells Wild Hog and Del Fuego souvenirs.
In the coffee shop scene where Dudley (William H. Macy) is hitting on the girl sitting next to him, he says "I think I have to research 'Alternative Specs', the computer says and searches for 'Alternative SEX' instead. One of the voices during the slew of 'Alternative Sex' sites, Jon Travolta's voice can be heard saying "Barnyard love!" in a southern accent.
Tim Allen played Buzz Lightyear in Toy Story 1, 2 and 3 and had a sidekick named "Woody" played by Tom Hanks. It's humorous that in this movie Tim Allen again has a sidekick named "Woody", but played this time by John Travolta, who also played a cowboy in "Urban Cowboy".
When Bobby Davis (Martin Lawrence) is confronted by his wife, Katie (Tichina Arnold), about his cover-up story to hide his motorcycle trip with his buddies, he tells her he was at a plumbing convention in Cleveland. In Bad Boys 1, Lawrence's character, Marcus Burnett, lies to his wife Theresa (Theresa Randle) to cover-up having to guard Tea Leoni, by telling her he has to go to Cleveland on a police assignment.