This wasn't Floore Country Store in Helotes, was it? A few years back, they were a full menu restaurant during the day, and a country music venue at night. We're regularly go there to eat lunch, then one day my son noticed a red 51% sign. Yep, even during they day when very little alcohol was being served, it was still illegal to carry there.
Plus, TABC has a way online to check the status of a license in Texas:
It is enforced if you report the incorrect signage. I have done this when a place actually had both Red and Blue posted, and their license was Blue. TABC did go to the place and correct the posting.
Now, what happens with a new establishment that has no track record of receipts, the TABC will take the estimate (read guess) of the owner to make an initial determination. If it is wrong, it can't change until the next renewal. So, you may think the 51% sign might be wrong because of the activity, but the only way to know for sure it to check the TABC website.
And as others have said, but to clarify - as an LTC holder, you are responsible for knowing the law, regardless of signage.
The local dance hall, run by the Knights of Columbus, had one on both sides of the bar wall, so you would have had to be legally blind not to see it. That being said, when my wife and I attended dances there, I was able to pick out quite a few men that were concealed carrying.....just not very good at it. I was really surprised that the local Constable, that always worked security at the dances, not enforcing the law.
The hall recently sold to a private firm that changed it to a fancy venue. I was in there recently and the 51% signs have been removed.