NO in LA PAZ. Don't waste your time confirming this...
No EVERYWHERE else...
Except One Place...
The OTAY MESA border crossing
Northbound two blocks before you exit into the USA on your LEFT (West)
ADUANA is not on the main boulevard. It is a block away. Make that left. Park somewhere then scout it out on foot. This is a been-there-done-that tip. The aduaneros need to see your rig in person. Let them in the office make the arrangements so you can drive there for the exit procedure. Have someone stay with the rig. This isn't the best of neighborhoods.