I was on this flight. The queues were really awful. People were still waiting for vouchers and rebooking at 6PM when I left the airport. I decided to forgo the hotel vouchers and just pay for a hotel myself. The convention is over and there are plentiful rooms in town tonight.

It will be interesting to see what knock-on effects there are from this 777 being out of service for a day. I'd bet that 946 will be canceled tonight.