That happened in Arizona, not Texas. It appears that the Feds are the ones who released them, pending a hearing on whether he qualifies for asylum.
This is why I support Rick Perry. He would change the rules and regulations that the Department of Homeland Security work under, and appoint an Attorney General who would enforce federal law. Perry is the only one of the candidates who has real life experience with the Feds and the border for 10 years, and has worked to tighten actual border security and struggled against the idiots in Washington over and over.