Phew, progress on Saturday. Here's information if your key gets stuck in ACC or ON (hopefully NEVER START!! Ugh!).
The issue was the key cylinder itself. It has to get to ACC to remove via the detent. I got lucky with wiggling the key like mad and managed to get to ACC. Examining the cylinder, a tiny T shaped piece of metal lost both its ears and wedged the cylinder. This tiny piece is under the clip on cover with a spring to provide pressure. This T's whole purpose is to make the driver push the key in to turn from LOCK. I decided to toss this T, reassembled and it works fine.
When the cylinder is installed, this T is on the bottom, pointing down. Enough shaking might get it to unwedge. Also, pulling and pushing key might get it too. Once it's to ACC, again, can remove normally with no extra work. If this didn't work, might be able to rotate by force with pliers on the key. Obviously, this might end with a broken key and a new cylinder. Tapping the key with a hammer might work too.
Good luck if this happens to you!![]()