That IS a cool concept though. Drone laws would never allow that though, then again corporations tend to be excepted by most laws so maybe they could do it.
Probably not that practical though, the time it would take for that blimp to go 1000km+ to the cities that are further than the distribution centre you may as well just send it packages on a regular truck lol. What could maybe be more practical is have trucks with drones so they drive to each area then drones take off and come back as needed to deliver to houses.