LOL! The truth of the matter is, CWD is widespread across the country and I believe in only one state, somewhere out west, has it caused population level decreases. The DNR has no choice but to try their darnedest to eliminate it. If they don't and it becomes widespread, they will be ridiculed to no end. If they try to fight it, they will still be ridiculed when they fail to eliminate it, but at least they tried. IMVHO, it is here, just like the invasive species continuing to spread in our lakes. There is no way to eliminate it. But as I stated, it won't significantly impact deer numbers in the state. The disease will kill far fewer deer than the efforts to get rid of it will. It is mainly the health issues to worry about. But I've been wrong once or twice before.
Regardless of where you put that fan you'll still need another fan of some sort to circulate the air around the house. The heater one only get the air out and off the heat exchange. Put one or two more in the upper corners blowing the air back down. Hugger style ceiling fans if you have room are the best. The blades need at bare minimum 4 inches and most experts say 8 inches of clearance to the ceiling. I'm at about 4 1/2 and it works fine.
Keep in mind its technically winter and by foaming it in "his" shop he is doing a service to you and you are paying for it. Your house will need to be at least 50 degrees to foam it. I just had my 8x16 floor sprayed in my shop this past sat and it was $220. The guys that did mine are done for the season, getting too cold to travel and keep the chemicals from freezing.