That mcdonalds is not a corporate store. They are a franchised store so its completely possible that they only sell the ice cream during warmer months
At the drive-up window, there is a telephone number to call. Call that number and I think you will get the explanation that they sell ice cream during the warmer months.
Your probably going to get ice cream near time to close, they will not dirty it close to closing to avoid re- cleaning.
Ask them what going on
Never had any problems sorry
Thanks! Your answer is awaiting moderation.