I tried my new CR Spotless water deionizer and blow-dried the car with the blower end of my Vac N' Blo and never touched it with a towel. There's a certain joy in knowing I didn't add any scratches. I recommend it.
You don't even have to use a shop vac or any kind of blower. You can just rinse the car, leave it outside and let it dry by itself.
Now that will definitely mar and streak your paint. Forget about buffer trails, now there are butt trails to remove.