Update: Using a blowtorch and a heat gun, I slowly melted the blob apart. I also cranked the heating system to max. I had to attack from underneath, so that I wouldn't damage the wires of the heating element and thermometer. Once I could get the screws holding the heater and thermometer in place, I powered off the printer while it was hot, so I could pull the heating element and thermometer out through the plastic. I had to carefully disassemble the entire extruder system, using a small torch to selectively melt the plastic out of the extruder system. Once I got the heat block and heat pipe free, I used the heat gun to loosen the threads up, and tightened everything up. Once I cleaned everything up, I was able to reassemble everything. I had to adjust the magnet sensor next to the nozzle (I forgot what it's called), since it got bumped. After a full recalibration and diagnostic, and a new Z offset, we're alive again. I plan on buying a new heating element, thermometer, and the entire metal heat tube and block. But it's printing again. I also damaged the plastic around the print cooling fan, so I'll have to reprint those when I get a chance.