So the bad guys scope out a Hyundai or whatever and then listen to the scanner for a while until they're confident there are no cops in the area and then steal the car? Is it feasible to call in a distraction and listen for that?

I'm not saying there's no concern. I'm just not sure if this 30 min delay is as effective as it sounds at first glance. My gut reaction has been wrong enough times in my life that I have gotten in the habit of challenging my own assumptions.