Please post your relative seniority before seeking guidance. You might get some different answers from guys that are junior to you or are outside looking in than the guys who are are more senior...
"Just get a cab...hell....stop and grab some Tequila to take home while you are at it. It's a great place to get out and look around...."
FWIW....I stayed on jet after I operated in out of GDL when I had a B/E deadhead and chugged on back to Memphis that night and used the bank later. I didn't care to mess with GT issues or Mexican passenger terminals. But I speak not a word of Spanish, and other folks may be a bit more encouraging.