There's a stray kitty on my back porch, can I do anything for him?

Board 8

He was laying on one of the patio chairs, but I felt bad since he was shivering. So I took a chance and grabbed a blanket, but of course he bolted immediately once I opened the door. Still laid the blanket on the chair though, and I just peeked out to see he's back and seems to be sleeping a bit more comfortably.

Sadly I don't have any food to leave for him and stores are all closed today. And I doubt I'd be able to coerce him to come inside, he'll just run the moment he hears me. Poor guy :(
I don't kill... but I don't lose either.