Partly guessing but there looks to be a house just to the right. I expect the cat lives there. My old barn cat, Jack, would do that exact thing. He’d stalk me when I was working in the shop or truck bay. Whenever I got on the ground on a mat or creeper he would instantly be on my chest watching whatever I was doing-—like he wanted to help. Power tools didn’t bother him either. He’d stay as long as I was down.
And that was a reason I never fed him fishy kinds of stuff. Didn’t want to have to fight fish breath.
The police put the cat on him like a weighted blanket to keep him calm. Or maybe the cat's owner was a pretty blonde who said "Don't Move! and threatened the man with a baseball wand!
Humm. Sorry...Goodnight. Its late!