I tend to agree. When the sheriff commented about the car likely breaking down, I thought to myself "you idiot." It seemed to be a dubious theory, as I preferred the idea that there was a second car, based on the conspicuous color of the first one.
But the location doesn't make any sense if you want law enforcement chasing the wrong car, and the spray paint is just bizarre.
This was a missed opportunity, and I wonder how they got out of there. My guess is they used a burner phone to contact someone, and were perhaps picked up.