Without knowing what type of GPS it was, or how the system was setup, the best I can do with this kind of question is to reference my own GPS system. Mine is a fairly simple Magellan handheld. As long as mine is turned on, and isn't set to backtrack, it's going to log every location I've been to - it logs the route I've been following - that way, I can save the route, and follow it back out. Assuming the one in the Jeep worked in the same fashion, it was just a matter of them saving the route, and following it back.
This is so sick!!!
This doctor should lose his medical license and be under investigation himself
Thanks that makes sense.