According to police, Wayne l. Field III, 51, got cozy in Williams' home, drinking beer, eating pizza, surfing the internet, even defrosting a lobster.
They say he left wearing Williams' clothes and 2005 White Sox World Series ring.
Field was arrested when he returned to the home on Monday and was caught looking into a window.
During the burglary, police say field left behind a hospital bracelet with his name on it, which is how he was caught.