Fun little game. The karma mechanic is pretty interesting, though I think it can be cheesed by hoarding all of the valuables until the last second, then selling it all. That way the cops won't have time to chase you down xD. My suggestion would be making it so holding valuables for a long time decreases the karma little by little. So you don't really have a choice but to either sell them or put them back in the lost and found.