I hit some debris on the highway which scraped the side sill of my car. I cleaned the area and luckily the scratches buffed out after wet sanding with 1500 grit sandpaper. The 'fixed' area looks great when wet, but the finish in the sanded area is cloudy when dry. Will waxing the sanded area resolve the cloudiness, or does the spot need to be re-cleared? If so, is there a cheap way to DIY the job? Will waxing a sanded spot cause more problems if I do decide to paint it later?
I know very little of paint care or detailing (paint doesn't make the car faster) so I'd really appreciate the advice. Thanks!

