RBC08

I used the two bucket method to wash my new car two days ago, and today there is a noticeable amount of dust (or little particles of dirt?) on the roof and hood. I live in Florida, and it's been fairly warm but hasn't rained since I washed. I purchased Adam's New Waterless Wash, but after reading some stuff online, I'm hesitant to use it because my car is black. I'm also unsure whether it might be too dirty to use the Waterless Wash. I know that it will be impossible to keep a black car looking spotless, especially if it's parked outside (like mine is), but is it fine to use the Waterless Wash almost daily between weekly/bi-weekly washings? How much dirt/dust is too much for waterless washing?