The call was from American Collectors - I was suspicious as well, so confirmed the contact info both before and after I returned the call. And like I mentioned, the agent did not ask me anything that was out of line (such as payment info or anything like that). When we hung up, I called AC at another number, got the exact same automated greeting menu, and also got the same person when I dialed her extension.
I don't know how the policy number was obtained, but like Bob said, was probably sold illegally, maybe by a former employee.
Car is well secured, including ignition disabled.
The fraud ideas you guys mentioned are really interesting - bet it is something like that.
I'm going to keep a watch on my insurance info and see if there is any activity in the coming days. I also had the thought mentioned above about maybe a good idea to get a new policy number; maybe I should call back about that.
Ha ha Steve - not for sale, bro!
Thanks,
Aussie Orange! You are welcome to hit it whenever you visit from OZ (no homo, of course!

). Smart call on the identity theft angle - will keep an eye on that.