What if you found several bags full of untraceable $100 bills on the street? Is this your lucky day? Are they yours? Can you keep them? Well, no, that’s stealing (with some exceptions; read about them here). But if you make off with, say, a million bucks and get caught, a jury might not convict you, you lucky guy. They probably wished they found it. Read story here, buy the book here, buy the DVD here.
Return the loot and call the media to witness the return. The finders were unemployed. Positive publicity would be its own reward of an honest unemployed person doing the right thing.