I have another way to get GP at the TGIFs that don't award them. I was hipped to this in ATL.
The TGIF in ATL doesn't give points. I asked the General Manager what to do. He said, just go to one that does and give them your receipt. I did that when I was in VA and it worked. I simply saved the receipt and told my server that I was ina hurry at ATL and didn't get my points and asked if she would include them with my current meal. No problem. I now always make a point to stop in ATL and take the receipt to another TGIF.