At about 8 minutes in as the police car was leaving the garage a California license plate (blue background gold letters) can be seen even though this was supposed to be New Mexico (yellow background red letters).
At about the 26 minute mark, the first letter on the name of the cab was covered with white tape, as the name "Hecker" was originally "Checker".
At 28:49 you can see the boom mic when Cannon is in his hotel room at the Sands motel in the right hand corner of the room as a shadow around the light on the wall for quite some time.