When I did Domino’s Pizza delivery, some addresses were well known, and for most addresses we did not need directions because we delivered to those neighborhoods so often. So, I see what you mean. However, I think tubes would be too much maintenance. I think low-altitude package throwing from building to building would be better. Every building would have a net and a catapult/canon on it. That would not work for cooked meals but could work for some fragile items. To prevent failures from falling on people’s heads....

I re-evaluate my idea. Have wires running from building to building, and just have a motorized package holding robot slide down those wires to the right building.