When EMTs bring the Adams girl into the ED, the doctor examining her has no gloves on in one scene, then has one glove on in the next scene, then when he tells the other members of the Adams family and Mary to wait outside, he suddenly has both gloves on.
During Mary's breakdown, when she storms out of the office, and across the street, shes walking northeast from the red brick building that supposedly houses the US Marshal's office. The rail yard that she and Marshall end up in, however is several miles southwest of the section of downtown that they started in.
Assuming she continued walking straight, or at least in the same general direction after they crossed the street, they would have ended up far from that rail yard.