Well, plan #1 should be to call the hotel, as SkiAdcock has been suggesting, and see if they can accommodate your early schedule. Failing that, my plan #2 would be to find an inexpensive joint nearby the group can agree on for breakfast, something like Starbuck's, Dunkie's, or McD's. Failing that, my plan #3 would be to buy convenient breakfast foods the day before-- things like nutritious bars, dry cereal, and milk-- and eat in the hotel. Perhaps combine #3 with a bit of #1... can the hotel agree to provide basics like hot coffee and cold milk at 6am, if you bring the rest?