Shawn and Gus the Mexican adventure?

I'm doing a re-watch of the Psych series and I forgot that Gus made reference to 2 attempted trips to the Mexican border in the pilot. So I'm looking for any fics that deal with these trips. Preferably not Shawn/Gus slash and bonus if it is somehow a Shassie fic but really I'm not picky just looking for any fic detailing the trips.

Thanks :)