Sorry to say, this looks like a defect and you could get away with having
those techs at Ford to replace/repair free of charge. As long as you
didn't puncture it at all, it sounds like a defective line. But, if you
can, buy the Hanes manual (if it's out) or ask the guy at Ford to show you
and print you out the exploded view of the system. Either way, if you want
to do it yourself, you'll need to be proficient in the task at hand and
need the visial help. Good Luck!

Had that happen on on older probe that I had, the ford dealer just shoved a
ccoathanger or similar item up the drain hose from underneath. Can you get under
your car, do you know where the drain comes out?

If you go too far you may damage a coil, but don't know for sure the layout
design of the AC area in there.