Try Zerorez.com. I don't know if they would do auto's only but they are quite expensive. I've used them to have the carpet's cleaned in the house and it works wonders. After they cleaned my carpets, I asked them if they can quickly run their machine on the carpet areas of the BMW. They did it for free. Amazing results, better than using Resolve or the common carpet cleaners they sell in Home Depot, grocery stores, etc.

I am no way affiliated with Zerorez. Just giving some advice on my experience with this company. Hope this helps you out