Just guessing:
He was asked to leave the hotel (trespassing)
Is there some law in Texas that makes it illegal for one to possess a gun while under the influence? Which, being Texas, I would find hard to believe, but one never knows.
Unlicensed carry in a bar is illegal in Texas, but that would suggest that he 1) didn't have a CCP, and 2) there was one on him rather than in his room. Neither of which is mentioned.