Best thing to do is unplug the pump or pull the fuse.
I'll pull the fuse, but does that fuse also control the heater? I need the heater, but the diagrams I am finding online show that the glove box fuse is the AC & heater control. Or should I pull the AC compressor clutch relay under the hood?
How long do I need to run the AC before the bearings burn out? 30 seconds? 30 minutes? 3 hours?