Didn't you wonder why there were zero ADRs after 230 across all of MK? That should given you at least a clue to check the very publicly posted park hours. Now that the park reservation system is in place it should make you double check park times for planning. Disney constantly changes park times, while normally that benefits people it doesn't always. I'm sure if you call and tell a cm your food allergy issues they will try to help you. We are after all only talking about 4.5 hours one single day.