I’ve eaten here several times each year since being diagnosed with Celiac disease nearly a decade ago and have never had a problem. GF flavors are not marked on their menu, but you can ask for a list. All of their Italian ices are GF except sour cherry and many of their creme ice and ice cream flavors are GF too. They will clean the scoop before scooping if you ask.
A lot of the ices are naturally gf. They have allergy dedicated scoopers and will take from a new container if you ask!