The story is written so well, I'm not sure it's not a bit embellished. :)
Anyway, there's all kinds of people, everywhere, and I don't think those two characters are representative of Texas as a whole. Texas has a lot of diversity, a lot of good work comes out of there, and people are generally decent and not like the extremes that sometimes percolate to the TV news.
Also, to the extent that Texans overall might tend to have qualities like, e.g., valuing principles and individual responsibility, I think that's good input to have, in a diverse marketplace of ideas (even though it might not be quite my own current thinking).
(Please pardon the straight response, on a humor tangent, but I felt a little bad when I realized I'd invoked a stereotype, and I felt I should clarify.)