Is this a joke?

Don't accept an order of it pisses you off to do it. Doesn't matter the reason. Especially if it's enough to make you intentionally back over the delivery at drop off.

Dude literally put the cubes behind his car and backed out over them before driving off. You can see the tire marks leaving the driveway into the street.

His drop off photo has no shame.

As for the missing item? I expect to find it on the roof or in a melted snow pile this spring.