They can and have, as I've read. See the problem is that they're going to have thought of all this too... this is their job. They get paid to catch you, and while their morals are shit, not all of them are stupid. So you're up against someone who's had lots of time to think about this and enough experience to perfect their technique.A camera seems like it would draw more attention than it's worth... but I don't know, you know the setup and I don't, so maybe not.