I seriously need to find a way to neutralize that stuff. I'm thinking about going back to work and dumping several gallons of water on it and blaming tropical storm Fay for the mess. I posted a message on Seachem's support forum asking about any way to neutralize it.
Could try Fabreeze, that stuff's pretty good with smells rather than just covering it up. No clue about prime, though. You could probably get it out with jut water, but dumping water on the carpet isn't much of an improvement.