They have a robot named Wally that brings things like food, etc to your door -- no human. I actually needed tape cause something of mine broke and the phone rings that informs you the robot is at your door... it then has some questions it asks on it's little screen and you open the top and take our your item. It then asks how you did and then it rides off to the sunset (youtube videos available of this).
It did a great job, in fact if they wanted to right now they could implement this in fast food restaurants... basically 90% of humans could be replaced (keep 1-2 humans to oversee the bots).
So its closer than everyone thinks... I feel like by 2030 robots will outnumber humans in many of these service fields..