Here's where I think your drone concept takes a major hit on the reality scale.
Some of the basic premises about drone delivery is the savings in GAS/fuel and carbon footprint reduction it would supposedly improve. Another is for large companies to FIRE a ton of delivery drivers so to add to their bottom lines, aka executive pay and benefits. So does buying less fuel. None of this is for the benefit of the end user, none, because the user DOESN'T CARE how they get their drugs to the door or home. Drones are to save money once invested and implemented and to keep more money in the executives and owners pocket.
Driving out to the home, then flying a drone up the sidewalk is beyond ludicrous.
DO web site sales, DON'T do drones at this time.
GO TO BED!!!