I probably would have spoken to a lawyer about this. If it was going to cost me thousands of dollars, then I would have forgotten about it. If it was a couple hundred bucks, I would pursue the issue out of principle, even if the DVDs were not worth that much.
Perhaps the driver's license was fake. Either way, it's a shame we have to live with people who do these kinds of things. After having my car broken into multiple times and eventually stolen, and home broken into (luckily I don't have much worth stealing), it sickens me.
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.