I have no idea where this place is, so I am unlikely to even go there.
I recall years ago, my buddy, Dr Jerry Katz, a psyche professor, and I went to a restaurant named Culpeper's BBQ.
When we got the check, the amount was half the amount shown in the menu. I told Jerry, and he said "don't say anything, just leave a nice tip", so I did.
He explained that they thought we were undercover cops, because the way we were dressed. We hate a lot of great meals at Culpepers until they raised the rent, closed the restaurant down and replaced it with an Exxon station/convenience store.
It was a good deal: we got a good meal, the waitress got good tips and everyone felt safe.
It does not bother me that this place gives 25% off for pistol-packin' patrons. I just think that it is a marketing scheme.
50% off is a lot better than 25%, that is for sure.