When Barney leaves the hospital in the closing scene, there is clearly an open courtyard between the hospital and the gate. As Barney and Cathy run toward each other, they appear to be on a tree lined lane. When the camera shows them exiting the gate, the open courtyard appears again.
(at around 33 mins) At the motel, a boom mic can be seen at the top of the screen while Barney and Cathy are hugging just seconds before the scene ends.