These things are already all over Manhattan:
SOURCE:
https://momentummag.com/tern-and-dut...ty-deliveries/
I don't recall ever seeing one on a bike path/lane - they're simply too long and would have trouble turning. They're big and visible and fast enough to just occupy a car lane. I think they're a great, environmentally responsible way to deliver goods; way better than a truck sitting in traffic and then idling and blocking the lane while picking up or delivering.
I have seen them going the wrong way down a street but I've also seen bike messengers and tourists on CitiBikes do that. It's not the bike's fault.