Nick, did you resolve this? I'm in the same boat, but by a different path.
I wanted to flash a zip, the cwm I had installed failed to flash it, so I decided to use flashify to flash Philz modded CWM, since then, I can only boot to recovery.
On hind-sight, there was an update threatening to install..
I can only boot into recovery, can't seem to get into download mode. Cant sideload, as ADB does not recognize.
Stock rooted D80010d on ATT D800