So I was riding my fixie home and saw a bike tossed in the bushes right by the sidewalk. It's a junky myatta MTB with pretty old and components and a u-brake (you know it's old-school when...). The handlebar was completely cleaned off and just left there on the stem. Brake cables were disconnected and the rear one was neatly coiled up and hanging around the head tube. Both of the brakes were disconnected like someone was about to take off the wheels but both wheels were on there. Deraillure cables were cut cleanly (no fraying or twisting).
I originally suspected this bike to be stolen but only the brake levers, shifters, and grips were missing. They could have taken the front wheel and the saddle (both on quick release) but didn't. It even had a decent amount of air in the tires but the whole drive-train was rusted.
I locked the bike up to the nearest rack and rode over to the nearest police precinct but those donut-munchers are only open 'till 7. What should I do?