I never got the information on the guy. The store owner refused to give it to me. Basically once I and the store owner realized what happened, the owner called the cops and worked with them directly. They took the DVDs (and presumably a copy of the driver's license). I asked the store owner several times if I could get the driver's license as well, and he refused. And I can't blame him. Given the situation, I'd have done the same thing.

It does feel like in cases like this the cops rely on people having insurance and thus generally don't bother unless the break ins become an epidemic.

It's possible I could have approached the cops differently and received better success. Be more persistent? Be less persistent? Have a lawyer speak with them? I have no idea. When the cops refuse to do their job for whatever reason, there's no fool proof way of reversing that.

EDIT: And also, I probably should have been there when the cops came to the store. That might have also helped. Live and learn. At the time I thought "photocopy of the driver's license! score! I'm saved!" and was pretty naive about the whole thing.