@edgarblythe,
Well, I'd like to think the Rat collected all family members and high tailed to a more suitable place......the rat may have realized Rocky was agitated...and that disrupts Rocky's routine....and decided to move to a different location............
The rat and it's offspring will find shelter and plan for another season...Do Rats hibernate? Seriously, do they? I worry about the critters who live outside..... but they probably are better at survival technique than humans are....Wishing Good Luck to the critters, varmints and all of the earths life forms who deserve a fair shake.