Texas is ****ed up. They do this kind of shit all the time. A few years ago the police in Dallas were going in to bars and giving people breathalizers then charging them with being drunk in public if they blew over .08 even though they were no where near a car. Some of them were in hotel bars in hotels they were staying in so there was no chance they were going to drive. Ridiculous shit.
But it makes them all feel better about being "tough on crime".