Got it working. Here's what I did.Take the cover off the dash that has the hood release on it. The one below the steering column held on by 4 screws. Then you can see the controls for the heater on the right. Right above the floor hump. Try the control and you will see it wiggle and take notice which way it needs to go to open. It should be clockwise.This should be evident by the black peg in the lower right side. Take out the 4 screws that hold the control and just pull the control straight out and let it just hang there. Then, you should be able to see the round black valve(?) with the little black peg (see above for reference to watch) that is attached to the actuator(?). Leave this on. Do not take it of. It will have a hole in the center that you can fit a 1/4" drive extension into perfectly. Attach a ratchet to the extension and give it a little pressure clockwise until it frees itself. Once it frees itself, spray a little WD40 or other lubricant on all the moving parts. I turned on the key to make sure everything was moving to all the different air outlets. Once I oiled it, I moved it back and forth several times to get oil on everything and made sure that it did move fairly free. Then I made sure it was back in the position I started from, put the controls on and held them on by hand, tried the knob to make sure it worked, then reassembled everything. Once it was done, I did notice just a slight catch from Defrost to floor/defrost. I figure I save myself $900 and if it starts to stick again, I can repeat as often as needed till I see someone come up with a different solution. I live in the mid west and we are also seeing cooler temps in the morning and time was of the essence. It will be nice to have that floor heat back in the morning. Hope this helps you. If you need it, I can go out and redo it and take pics to show you. I think you should be able to do it without them though. Let me know how it works for you.
