My question involves criminal law for the state of: Texas
I'm not sure if this is the correct section, but this is the closest I could think of. Some of the details have been changed but it shouldn't affect the underlying legal issue.
The issue is not about whether or not a private business is allowed to prevent you from filming in their public areas. The issue is about whether or not they can single an individual out for not filming, even though others are allowed to do so.
I dance, and sometimes I will film one of the other dancers. (To the extent that it matters, the other dancer is a minor, but I have written permission from her parents to do this -- specifically to prevent the studio from attacking me that way -- and we've known each other for years, and in fact they encourage it, because the videos go to them; the videos document her progress in dancing.) The dance studio (private business) however is discouraging me from doing this. The studio is open to the public, and sometimes members from the public (i.e. random people we don't know) will come in and film the dancer, because she's a high-level dancer doing cool high-level things. None of them have any sort of permission from the parents, written or otherwise, but it's in the public areas of the business. The studio has no issues with others (other students, random people, etc.) filming the dancer, even though she notices it and it makes her somewhat uncomfortable (and then she's not as focused on training). However, they are having issues with me filming her. There is no written or posted video policy at the studio.
There's a backstory as to why the studio is doing this, although this gets away from the legal issue at hand -- she's a good dancer and improving much faster than the others, including the "in" group of dancers at the studio (who are friends with the owner). There's no other dance studio in town, and they know this, so they're looking to hamper her progress as much as they can; these videos help her assess how she's doing when she herself sees them. What is unclear is whether or not the studio is allowed to target a specific individual for not filming, when others are allowed to do so and there is no official policy on filming.