Of course it changes that. No where in time or space on earth have there been autonomous deliveries moving about in the same space as you or me. So the interesting philosophical and practical question is “who has the right of way”. And as you say - “deliberately obstructing what another person is doing” when there is no person being obstructed. Someone may if may not be waiting. If I was on the receiving end of that meal, I would expect another drone delivering my food. Just as I expect packages to be rerouted if a delivery truck has a break down.

So the answer is “no one knows right now”. Or to be presice, “no one, and especially not you, knows right now. And I for one will find it interesting when it is solved. Just not from you”.

If you want more answers, please go look them up you yourselves - don’t waste my or others time posting it here.

But can they order you to move because you are standing in the way of a robot? Disobeying an order is arrestable, fair enough. Blocking a person is probably illegal (depending on how it’s done). So I’m uncertain of the activity necessary to block such a robot. Just standing straight up an down in front of it sounds legal. Actively and continuously stepping in front of it to block it at least sounds worse. But how do you enforce this? What if a dog blocks or attacks a robot? What are robot/corporations rights?