Toronto Cops Found My Car !!!!

[maybe]

I don't know a lot about GPS technology, but is here any chance that they leave a signature that can be traced?

 

Normal GPSes only receive signals.

 

There are some combination type toys where you get GPS and PDA (palm pilot) with some sort of cellular connection for email etc. One of those could be located (while turned on), but I'm doubting this is one of those units. You don't tend to see these combinations left in cars - they get carried around like a Blackberry.

 

If you're asking because of what I wrote about the GPS telling people where it's been, that's a unit internal memory thing, not an external bread crumb trail.