I went to the restaurant and spoke to the manager. I had my triumph dining card that explains gluten allergies (in English and Spanish) and the manager read it. He told me they put soy sauce on all their meats, and didn't offer any alternatives. I would not consider this a gf friendly restaurant.
Ask for corn tortillas. very understanding about cross contamination. Fresh and savory. authentic Mexican food. Grilled seafood and meats.