There's always a good chance you'll get fed by an older Mexican lady when you visit, haha. If you're hired for a gig it's almost a sure thing you'll get fed by whoever hired you and if it's a party you're taking leftovers home.
It's been ages since I was in Mexico City or Tijuana, but I do remember how different the vibes were in each one. I'm from Merida, which is way over on the tip of Mexico and a lot less busy, but very tourist heavy.