@DamienD, I don't think you can sue for a wet or icy walkway. That isn't something that the homeowner can control if they're not home lol that would not go in his favor because the driver took their packages instead of leaving them.
I have a door cam, and this is how Amazon delivers shjt when it's 70 degrees outside. That or they just chuck it from their van going 60 mph down my little side street
Fyi. Any injury they sustain or any other delivery person sustains while making a delivery on your property makes you liable. Keep your walkways clear. The reason it makes you liable is because it’s technically inviting them on the property because you ordered a delivery.
Later that day he was fired for taking 31 minutes to deliver packages instead of 30