Damn it !
I have a 2003 ZX3/Manual tranny and my key also won't turn anymore.
I had no signs that there was any issue with my ignition cylinder going bad.
I just parked my car in the garage as usual and now the damn key won't turn at all.
I even tried my un-used spare key and it also won't work.
Hopefully, a locksmith can fix this because my wheel-lock is enabled and I'm not sure how a tow truck can even get my car out of the garage to get it to the dealer if needed.
I can't believe Ford won't recall this issue.
My warranty is no good since I have 44K miles on my 3/36 warranty.