One thing I do for $10 I register my bikes with the http://www.nationalbikeregistry.com/
That way if the cops ever do recover my bike I have a better chance of getting it back.
Plus you can fill out the registration yourself and for example my hardrock registration says "Specialized HardRock MTB with 48cc motor". Or something like that its been a while since I read it.
Hope you get your bike back neum5464