Quote:From what I understand, he parked in a parking lot on the U.S. side of the boarder and walked across to Tijuana and spent some time there.  He walked back across to the U.S. to his car which was in a parking lot not far from the border (I have done this many times).

 

When he got back to his car, he intended to go back to San Diego.  The signs around the parking area and at the entrance to the interstate were in major disrepair, combined with the fact that it was dark.  He entered the interstate via the wrong entrance which led him back towards the border.

 

At that close of a proximity to the border (where the interstate entrance is) it's nearly impossible to get to the one and only lane where you can make a U-turn and go back into the states, especially at night and if there happens to be heavy traffic.