Ford A/C :: 2000 - Air Comes Out Of Vents But All Panel Air Regardless Of Temp Or Control Settings

Bought my truck (2000 F150, Manual, V6) used with 135k on it. In 3 months I've put 10k more on it and am starting to run into a weird A/C problem.

Driving to one of my clients, everything was working fine. When I left there was no A/C. I checked coolant, fuses, etc with no luck. We had a bit of a cold-snap and I also found out my heater didnt work. Air comes out of the vents, but it's all panel air, regardless of temp or control settings.

Took it to a mechanic who said the high-pressure switch was dirty, he cleaned it and the A/C worked at the shop. The moment I left the exact same problems started happening again. It's been back to the same mechanic, and today he tells me that the a/c clutch is drawing to many amps and shorting it out, at which point the PCM tells it to goto hell. He can get it working by resetting the computer, however, the moment I put it in gear it stops working (a/c, heat, all of it). He was able to put power directly to it and it run with no problems.

To me (very little mechanical knowledge) it seems like power, or the condensor. The mechanic said that the heat going out isn't related at all, which makes no sense to me because it's happened there in his shop where the heat will only work if the a/c works. Hes telling me I need either a new clutch or a new compressor altogether. Quoted me 300 and 1000 for each respectively.

Side-Note: The morning of the day when the a/c initially broke, my car turned off suddenly while driving. I was in gear and driving down the road like normal. I popped the clutch, turned the key and it started right back up. Also, cruise control seems to have stopped working and the eft blinker. If i hold the lever down (like push an extra 2cm) it comes on and works. It is sporadic.