I wasn't referring to the heat aspect...the alternator that keeps your battery charged isn't working...lol. wipers, lights, engine...I am surprised you made it 4 miles with tha kind of drain.
Sidenote, the cat is probably freaked out is all. A little grotesque, but had you killed it you would have seen a body somewhere. He is probably like my cat, It got outside (much to my immense joy) and was missing for over a week. A week later it came back. Be willing to bet the same thing occurs.