Seems to be pretty common from reading online, and those who have been through it say it should go away after the carpet dries all the way, including the pad underneath. I hope that's the case, but I'm visiting the house again today and might need to do something about it other than wait. I sprayed a bit of pet odor neutralizer on the carpet yesterday (it's only in one bedroom) but might need to spray more. Either that or wait. Push comes to shove, it's only a few hundred dollars to put laminate flooring in.
In any case, I'm driving there in an house, any tips? Wait a week until it dries? Spray something else?