Mmmmm. Likely the reason for the fur down, Turby.
You could call the AC guy, and he might be able to splice in a bit of tubing to allow you to fit the line where it was planned to go, but he might also tell you that the line is currently at its design length, or max design length, and there's really nothing he can do for you. And if he can, it won't likely be inexpensive.
Or you could just cut it into your framing as it now stands. I expect you should be able to reinforce the framing sufficiently if necessary, but my biggest concern would be for protecting those pipes from your future activities. Putting a nail into one of those lines will not result in an inexpensive repair. Maybe more costly than the re-route, eh?

Nail plates everywhere!
My opinion; worth price charged.