I assume you meant Trails End and for dinner there is no menu, it's just the buffet AFAIK which offers a fixed number of items and I don't think fries are on that. Even then fries don't seem to be anywhere so it's interesting you were even able to get those. I can't speak to how the manager in your opinion treated you, but wonder why all the waitresses said no problem to just french fries.
Larry
you can get fries at the Trail's End to go window with the Giddy Up & Go meal. Maybe if you knew to ask for them inside the restaurant, you could/would?