Just to get a few things straight, the battery is brand new. The car is fully winterized (block heater, heating pads) It has been plugged in throughout all of this. The first all of this started, as it says up at the beginning of this post. I went for a drive, everything was dim.. until halfway the everything went back to normal and my voltage went from 11-12v to 14, which brings me to the conclusion that it was the alternator. Leaving the car parked and plugged in, I had my radar detector on for a few days, it gave a voltage of 11-12 volts until a few days later I turned it off because it read, "Low Voltage" Locked it up, and left it. Theft light was blinking like normal, but everytime I would get into the car all the lights would be extremely dim. The theft light was blinking and the locks would work up until last night which it got to -45. The battery just needs a charge and I need a new alternator.. which is on it's way. There's not much more to this. I just need to charge the battery.
I don't think disconnecting the battery at this point wouldn't matter, as it's completely drained. Once I get my alternator in, I'm going to have to borrow someone's battery charger or use one of those emergency chargers as a jump to get the truck running so the alternator can bring the battery up to level a bit more.. and then I think I should be fine. Unless you think I missed something really important throughout all of this.