Review of Stacked Pickle

I went with a large group, so it was very busy. Waitress had no knowledge of gluten allergies. I asked for a gluten free bun (they said they have Udi's buns), and when it came out it was on the same bun as everybody else's. I asked the waitress if it was the gluten free bun and she told me yes. I said it didn't look like an Udi's bun and it looked like everybody else's. She argued with me for a bit then she said she could take it in to the kitchen to check. It came out on a different bun that was thankfully gluten free. Please be careful if you eat here.