Entryway windbreakers? I've seen a lot of different things used to cover worn upholstery: blankets, pup tent canvas, bay window drapes . . .
During my tear down I came across a stowaway:
I didn't think it would be a good omen to take the car back out on the road without his majesty on board. So I put him back where I found him - in the coin trap between the seats.