I have to admit that I've only been to Taco Bell in the US twice in the last 20 years so I've got no idea if the ones here are any different. I've eaten at ones here a few times and they seem OK. I'm really into the UK burrito places though, Tortilla is great and we go there reasonably often.
Tami, I don't think I've ever eaten at a NC food truck for any kind of food. My family used to eat at small, authentic Mexican restaurants all the time. In the cringiest move ever, my dad used to bring in his own tapes of mariachi music and get them to play it over the loudspeaker.