Throw in a bit of patience, and eventually they will tell you what it was that ticked them off. If you cannot be with them right away, tell them you are busy and will be with them in a moment.
great bands, terrible festival. 2 hour line at the gate for me. some waited three. few food options, over priced water, schedules all fucked up, endless waits at what food carts WERE there, etc. my buddy paid for the vip and even with that he had to wait 45 min. for a hot dog. please, weekly, expose this as the clusterfuck it was!