Buc-ee's.
When my son was on his mission, he got more people to talk to him or interact with him wearing his Buc-ee's shirt than anything else.
I don't see them losing the cult mindset just like you don't see In-n-Out losing theirs.
Was in Utah 2 weeks ago and on a Thursday at 9:30 In-n-Out drive through was full and the wait inside was to the doors. I didn't want to stay and order but the rest of our group did. When we left around 11 it was just the same.
Bue-ee's no matter what location you go to is just as big and busy. When you are driving down the road and have to stop for gas and the restroom, any woman who has been to a Buc-ee's will tell you they want to stop there, as do I.
That won't ever end, then you get in there and you end up buying way more junk than you wanted/were/ or thought about.