TexasCHLforum.com

It might make a difference after the fact, but not before. As I understand it, despite the absolute clarity (in my mind) around the law and what I was taught in CHL class, I have yet to see any case law where someone was arrested for carrying in a place that had an almost-conforming 30.06 sign. It could be one of a few things:
1) No one has actually been arrested.
2) People get arrested, but prosecutors drop charges.
3) People get arrested and are allowed to plead to other charges or otherwise get no-billed under judicial conditions.
4) People note that it's going to cost a *lot* of money to defend and otherwise accept defeat

Personally, if I see a sign that is *close* to conforming on a private business, I'll obey it. I do so out of respect for that property owner's intentions. Cities that post 30.06 signs that are not legal, I've got less respect for, but I consider those places much more rife for legal challenge and associated legal expense if I get caught.