[Perfectlap]

I only drive weekends and this time it was actually a week and half because of travel. I left a bottle of vegetable juice in the car and some weird Mr. Science experiment must have occured because it blew the top right off. and spilled all over the carpet. Out comes the carpet cleaner and lots of terry cloth towels, good as new. I get in the car and I pick up on this urine type smell. I pull over to Target and pick up some febreeze and cover all the carepting. Doesn't smell anymore.
But then I fire up the heat and POW! Smells like death....or actually more like the men's room at the Times Square Bus Terminal. Where the hell did that come from??!!

I'm about to order the 1Z or Wurth ac cleaner I've used in the past. Its like a foam that fills up the ducts. Any ideas? Where this came from or how to get rid of it?