I was making a milk delivery last week and one of the gallon jars full of milk fell over and broke in our good truck. I got a Bissell green machine the same day and cleaned the carpet once already. Thought I had it all out. I even pulled up the plastic step things that are right in the door and washed them and under them. Truck still stinks! I'm going to wash the carpet again today. Any suggestions on how to get rid of this smell?