[Rob]

I had the same problem like 2 months ago, I managed to get my key to turn one last time so I could take out the cylinder (your key has to be able to turn to get the cylinder out). Once I had the cylinder out I took out the tumblers and one of them was slightly bent and not falling back down into one of the lower positions on the key making it impossible for the cylinder to unlock. I just took out all the tumblers out as a short term fix and it worked fine.

But I guess this probally wont help cause yours is already at Ford getting fixed.
When I called for a price from ford for a new cylinder it was $93.00 I think