Given enough time, I could probably name 200+ well-known Mexican Food Chains, not so well known hole-in-the-walls, and drive throughs that I've eaten Mexican or Tex-Mex food.
So, that must be something that has caught on where you live, and hasn't made it across our path in this area of the country. Not that there's anything wrong or right with that, just blows me away that I've never seen that anywhere in a Texas/Mexico setting. I'm over 70 years old, Native Texan, eaten Tex-Mex food probably thousands of times - (includes homemade meals, and eating at all kinds of Mexican Food Restaurants from the Panhandle to San Antonio, Austin, Houston, Dallas, Temple, Waco, West Texas - and lived in the Yucatan half a year.) And I have never, ever seen salsa served in squeeze bottles as you mentioned. Just a little ribbing about the squeeze bottles.
to the rest of the world.) But I never seem to run out of different recipes or tweaks to try. Thanks for your articles, photos, descriptions, recipes - your efforts are exemplary ! And you have a lot of great sounding recipes I am anxious to try ( and I have 5 of the renowned 'Diana Kennedy's' cook books written to bring the understanding and appreciation of Mexican cooking, recipes, ingredients, methods, etc.