You guys are serious? Sue? Taking a hit on trade-in? Whiskey Tango Foxtrot, over.
People, this is a
car, and it was a common
accident.
Remove the seat. Use a carpet cleaner to clean the carpet. You don't need to buy these:
http://www.cleanfreak.com/cmachines1.htm
....but maybe you can
rent one. Hit up your local yellowpages or favorite search engine.