The Kroger by my house as these (or ones that look very similar). I generally avoid that store for many reasons, but I’m tempted to go there just to try this out. This is a few years old now; I wonder if they changed the tones.

If Defcon talks about hotel security have taught me anything, it will never be changed until the store is bulldozed to build a bigger store.

They have not, at least in my region, it's a fun little party trick when I see a locked cart out on the sidewalk.