...If you know it's there. The thieves' tactic against a potentially tracked vehicle is to steal it, park it in a public, but secluded place, then go away and wait a week. If it's still there a week later then the take it again and on to the chop shop. If it's gone then meh, on to the next one. By leaving it so long the police aren't going to sit on it and wait for the scrotes to show up again. The counter to this is to let them steal it for the second time and continue to track it...