Why not just remove the whole aging until you get it repaired? There are 8 screws holding it into the TM, just unscrew them (from the inside of the awning) and remove the whole shebang. Seems safer to me than trying to roll things back into the casing and driving down a highway!
My awning is removable, and I pop it off every time I store it, so it's no big deal. I don't bother with the screws (I have a different way of securing the awning to the TM) but popping it off isn't the end of the world.
If you are certain it's locked, then you should be ok. I personally would be a little nervous. Then again, you may not want to go through the hassle of removing all the caulk like I did