No Vacancy - S17-E7
Factual error: While investigating a Marine's murder, the team uncovers a labyrinth of live-streaming spy cameras hidden in the rooms of a Virginia motel. They show an attic in a motel room with cameras in multiple vents, the problem is that there are no air duct tubes which those cameras should have been mounted in. With no duct work you have no heat or no A/C, all you get is dust.
Factual error: The X-ray of Joe's arm is of someone much younger, with open epiphyseal growth plates, not something seen in adults.
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.