Yes, you can use your snack credits at the kiosks. The items will run between $2 to $4 each. You cannot use the credits on alcohol though.
The CMs will run your card through, just tell them you're using a snack credit.
We were at the F&W festival last year and decided that if we go again we will not get the DDP for the festival. We had about 5 CS credits left at the end because we were eating at the booths for lunch. You can only use your snack credits at the booths. I guess it would depend on how many days you are at the F&W festival.
Dreams Unlimited Travel is committed to providing you with the very best vacation planning experience possible. Our Vacation Planners are experts and will share their honest advice to help you have a magical vacation.