Lol, I have my own golf carts and my handicap placard but it isn't worth the drive. Chickasha and Tulsa swapmeets limits how much non-automotive merchandise you are allowed. So does Wichita and most of the others I do attend when I am able.
It could be Pate has clamped down on this because I only went once and it was many years ago. There are a whole lot of Texas vendors that come to Chickasha. I have talked to many of the vendors that have Texas plates on their vehicles over the years and many don't go to Pate anymore.