About a week ago I had a can of gas tip over in my hatchback Subaru and about a quart or so leaked out. There was cardboard under the can and rubber mats under the cardboard. When I got home, I removed the cardboard which had absorbed almost all of the gas. There is still a strong odor(actually it reeks!) and now that the temp has dropped, having the windows open a little isn't an option. Now I'm sure that I'm not the only person to have done this, so my question to this all-knowing board is just what will get rid of that smell? Didn't want to try Febreeze or something like that where I might just be adding another chemical smell to the gas smell but that gas smell has got to go. Successful ideas?