I'm curious if the police will be able to follow up on this guy. My guess is that he probably stole a bunch of stuff and they probably have a bunch of cases they could solve if they spent a few minutes and traked the guy down. Maybe this guy wasn't the package theif, maybe he was an old fashioned daytime burgurlar or something too.
Just be careful. Chasing guys like them could be a little risky, especially the gun bluff. It would be bad to bring no gun to a gun fight.