Yeah, buy another 5.00 magnetic sticker, and remove it from your bumper, and store it in your car, when you leave your car unattended. 8>)
Cheaper all the way around. Besides the cops will do nothing when you provide video evidence, except perhaps look at you sideways. If you take matters into your own hands, you will just open yourself up to trouble that will potentially cost you a lot more than 5.00.
Best advice, by far. The nice thing here is that the MAGNETIC approach worked like it is supposed to. The cheap bumper sticker is gone and the car is unscathed. Maceman seems to be missing this important point.
They know where you live be smart because these people are nuts.