Man of Honour
There's space to park up but don't expect to be able to pick who leaves first...I'd be amazed if there wasn't space for all the aircraft to be put down - most airports don't run at 100% capacity, and if needed you could park them closer together than normal/park them in areas that wouldn't normally be used for parking (IE by the terminals), or even where the airport has multiple runways, on one of them as a last resort.
Halifax, Nova Scotia on 9/11 - http://www.airliners.net/photo/0188171/M/
