Thwarted Robbery Attempt

I work nights, so at around 11:00am I'm asleep in my cozy warm bed, which is in my basement bedroom right next to the window well. I was waken up by the sound of someone jumping down into the window well area and trying to slide the window open. Of course, I have the window locked and there is a secondary measure in place as well so that the window cannot be opened from the outside at all. I threw on some clothes and went upstairs. By this point, the guy was at the front door on one knee attempting to use some sort of lock pick to get the front door unlocked. The door handle giggled around a bit, but he had no luck. It was at this point that I opened the front door. The guy was shocked that someone was home. He just stood there with a crazy look on his face like "oh shit". He had with him a black backpack that appeared to be full of stuff. I asked him what was in the backpack. He turned and ran away. I was in my boxers so I wasn't about to go chasing him through the snow. Anyone who knows anything about cat burglers is that you don't operate in the snow. This dude appeared to be high on something anyway, so I'm sure he wasn't too bright. I called the police and I filed a report with them. They looked around and said that there were some other signs in nearby homes of attempted break-ins but they couldn't tell if any were successful. I told them to expect to receive further calls in the afternoon once most people return home.