M.D.
I had a situation where milk spilled in my car. It was a faulty lid on a gallon of milk I had just bought and it leaked the entire ride home. I used a steam vac to get as much out as I could. After it was dry I sprinkled some carpet fresh and let it sit for a few days. Then vacuumed it up. Fortunately the smell was gone and this was few years ago and no residual smell.