This was about 3 years ago. I was told that suspected gang members were being arrested for bats, because that was their attempt to have a weapon and to try and get away with it when stopped by uniformed officers. I was told that they were arresting people in Dallas county for having baseball bats and being prosecuted.
Would this happen to a soccer mom? Probably not...
That must have been prior to the change made to 46.02 in 2007. Even then there was a presumption of traveling in place, but some DAs chose to ignore it. According to the current law anyone can have a club in his car (but of course an unmodified bat isn't a club).