I found this tucked under my windshield yesterday:
Yes, it looks like I'm doing my part to keep petty theft down in the Houston metro area. Of course, locking your doors and windows is easy and any criminal who saw my possessions would probably leave me $100 cash in sympathy.
In all seriousness though, I wonder if these sorts of awareness programs actually work to reduce crime and how the Houston PD actually evaluates them. It's an interesting question I might have to look into.