You mean 2000 grit right Terry?

I wouldnt touch your paint job with sandpaper less than 1200-1500, unless your repainting. my opinion.
Your hosing down your shop can make dust fly too, what works the best for me, set up everything, then leave for a while to let everything settle, even overnight would be best.
I found out the hard way on my mustang not to hose down the floor in the paint booth before painting.