So. Good news is I got ADB working. The Developer Options three dot second USB choice allows for the computer connection. Unfortunately, it resets on reboot. So if I ADB reboot bootloader, it restarts in fastboot mode but it is no longer connected to the computer. Haven't been able to figure a way around this. It's there any way to send fastboot commands by a connected keyboard perhaps?That sucks. I've always got at least a half dozen SD cards floating around. I use them in USB readers as flash drives and a number of my laptops have built in SD readers as well.
I'm going to drag one of my laptops out to the car this morning to try my luck at ADB.