When you open the door for your next pizza delivery, don’t be too surprised if you’re greeted by a robot. Personal delivery robots are taking to the sidewalks in a handful of U.S. cities, signaling what could become the next new way for Americans to receive everything from food takeout to mailed packages. The technology already faces its first wave of regulation from municipalities and states as companies continue to develop the nearly autonomous machines, tech reporter Alexis Kramer says in the latest episode of Bloomberg BNA’s Code and Conduit podcast.