It's a long shot but report the serial number anyway. If your bike shows up at some point at least you'll get it back. Also if you find it on sale somewhere (yes thieves are often that idiotically brazen) then having the police report on file and your bill of sale will settle the argument.
It was obviously a habitual crook that took it. Opportunistic folks don't walk around with heavy duty cable cutters.
It's sad that some people seem to think that it's OK to harvest their income from the rest of us by stealing our stuff.