This group looks to be working at the intersection of several challenging areas:
* Cannabis sales (In CA it requires medical documentation that must be verified)
* Cannabis delivery (This is still largely outlawed, even where cannabis sales are legal)
* Drone delivery (This has been broadly outlawed in the USA, in many areas its legality is uncertain at best)
* Bitcoin sales (Maybe the least controversial part of this operation is that they accept Bitcoin)
There have been many groups that have tried some variation of this service (bicycle delivery, car delivery, etc) and thus far, the only variation that hasn't been stopped is "pick up the buyer, drive to the retail location, complete legal sale, transport buyer (and their purchases) back to their location".
It will be interesting to see if this group gets off the ground.