Does anyone know if the table service credits can be used to buy counter service meals or do they strictly have to be used at a restaurant? I know this won't be the best way to use the credits but it'll be nice to have that option.
Yes, according to Mousesavers you can do that! This is what they say: "You can use table service meal credits at a counter service restaurant. Likewise you can use counter service credits for snacks (but be prepared for the cashier to think you're nuts). You'll lose some value, but gain flexibility."