They drive a truck with a wireless mast and a flat bed to your neighborhood. It will simply deliver all the packages one at a time based on GPS to your home. The driver of the truck will monitor and manually adjust as needed. A single person will have a 20-30 second job and then wait for the drone to buzz when the next package is at a home. With a good range on the truck you can cover several miles with one person without the need for utilizing a delivery service. A single person may also be able to handle 4-6 drones at once. They hover until the driver is able to deliver the package to the door.
Once delivered they will do the normal confirmation email. Regarding cranes and other items, it is required to register and have a beacon light on masts of a certain height. It will just need to be entered as a no-fly zone or a minimum elevation zone. Regardless, the drones don't just go from A-B. They can sense nearby objects. If one happens to be taken out, the driver just drives to the location to retrieve it. Maybe has a ladder... Nothing really complicated.