The hotdog with gravy and one other one can't be made gluten free. Fries are actually safe. Just if you order with a group ask that the gluten free ones be on a separate tray. I've ordered there and was fine but I've heard of people getting contaminated.
GF hot dog buns available but the staff was not very knowledgable on the issue of gluten. All they knew was that regular bread was unsafe. Decided to avoid the sausages and anything saucy/hashy and play it safe with just the hot dogs since they didn't know. Still ended up glutened, possibly due to contamination.