"Warning, you are approaching a closed zone. Stop your advance. Compliance is mandatory. Mobility privileges for this vehicle will be revoked"
I passed an obvious and ominous sign that indicated the border of the "shopping cart zone" and immediately my cart's wheels locked up! I was mortified, because I knew it'd do that! But my Waymo's over there, man! What was I supposed to do about it?
Obviously, Target has every right to corral their carts in places where they can go retrieve them. Theft is a huge, huge problem. But I was also constrained in pickup areas and I had figured, innocently, that the "Designated Ride Share" zone was the correct place to meet a Waymo with groceries.
So I had to bail everything out of the cart, and carry by hand. I learned my lesson. Only drop the Waymo pin someplace where my cart won't be kill-switched!