It makes no sense for the assistant FBI director to personally go canvassing the train station for a fugitive along with the foot soldiers. It makes even less sense that Keen's swipe to enter the FBI black site card has not been canceled two days after they started a manhunt for her.
It makes no sense for Ressler to let Liz in, to have sex with her and to stand up for her. There has never been much romantic chemistry between the two of them. Both of them regarded their single sexual encounter, years earlier, as a one-ff mistake. And the day before, Liz bombed a hospital, nearly killing Ressler.