If you're buying something that is clearly already labeled gluten free you might be safe, but I wouldn't recommend buying any of the ice cream. The people behind the counter first said everything was gluten free and then said only the sorbet was because it didn't have cream or milk in it. I think they were saying gluten was the same thing as dairy.
I tried a sorbet with a cone they swore was gluten free and ended up with a terrible reaction. I'm still dealing with the fallout a few days later.
No