That'll work, but I think dog handlers will sometimes give the dog another sniff along the way to refresh the memory. And while, I wouldn't mind them slim jimming my car open, I would mind them ripping all the wiring out of my car door. Modern cars are getting close to impossible to slim jim, even if they don't have a lot of security measures they're chocky full of wiring. I'd just as soon they didn't have to try.