You are better off than many who discover the feature when even the ring won't turn. Get some PB Blaster and soak the connections. It may take a while but spray freely, keep a towel around the base to catch the run off and just keep pulling and pushing and you may be able to crack it loose but don't be in a hurry. May take days. . So glad I never had that problem.
I had my steering wheel column re-chromed and found the new chrome being just enough to stop the steering wheel from moving. I had to put some tape around the column and peel back the new chrome enough to clear the adjusting collar enough to move all the way down. I ran some Gorilla Glue around the edge of the peeled back chrome to keep it from peeling back anymore. I removed the tape when the glue dried. I didn't think of this until I started to re-assemble the steering column.