In the scene where Mary and Camille (Philip Ashmore's wife) are talking about settling into a life without luxuries, there are shots of Camille with and without her seat belt on during the conversation. Shots coming from the passenger side, over Camille's shoulder, obviously show a seat belt still being worn, but almost all shots from the driver's side, over Mary's shoulder, shows Camille is not wearing her seat belt. Obviously they forgot this when doing retakes of the conversation, as at least two shots from the driver's side shows Camille wearing the seat belt. At one point Camille takes off her seat belt, and it's possible they re-shot the conversation after this and forgot to tell her to put it back on.
At the desert railroad crossing when the train goes by you hear a warning signal though no warning lights or crossbars are present, just old signs saying railroad crossing.
Mary gets upset with Raphael for looking up info on his computer on WitSec. She asks him "What if Brandi had seen this?" Why would Mary be upset if Brandi saw anything on WitSec, Brandi already knows About Mary's job as a US Marshal.