Unbeknownst to Joe Ga, the FBI's Associate Director, Mr. Cooper, and the DEA's Associate Director, Michael Beach, had already arrived at the Waldorf.
The room where Joe Ga and his team were located was completely sealed off, turning the luxurious presidential suite into a temporary conference room.
It was truly a stroke of luck that the FBI, due to Joe Ga's sudden 'disappearance' coupled with the testimonies from the Georgia father and son, deducted that he had gone after the 'Messenger'.
Therefore, they wanted to get one step ahead and capture the 'Messenger' first, to take a leading position in this crappy collaboration. They hadn't conducted any preliminary surveillance, but then again, the FBI generally doesn't need to do surveillance. No one anticipated that the 'Messenger' would be so insane.
If it weren't for Joe Ga's timely notification, and SWAT stopping in the elevator area, everyone would have been finished!