Came out of the grocery store to this. Car was on but nobody was inside.

https://lemmy.world/post/2757636

Came out of the grocery store to this. Car was on but nobody was inside. - Lemmy.world

As annoying as this was, I did get to live out one of my petty fantasies: I had grabbed a coloring sheet for my toddler with some crayons, so I left a nice little note telling this guy that he could now practice staying inside the lines.

Should have just moved the car since it was on
This. I would have re-parked it in a parking lot across the street.
IANAL, but I think this is technically grand theft auto. Yeah, the owner is a jackass, but don’t do this.
Just take the keys out and leave them somewhere fun. Like inside the car but out of sight. Or on the base of a parking lot light.
No, you want them to see the keys. Put them on the seat where they are clearly visible then lock and close the door.
I like your idea much more.