Blow it off with a compressed air nozzle for the dust and use car polish to get the spatter off the clear coat.
Cutting paste.
Hi that is what tacky pads are for to remove it. this is yet another reason why it is not best done out of doors. best done inside out of the wind and cleaning up after yourself with a vacuum cleaner.
a buffer and some polish
I was putting primer on one area and forget to mask another area and grey primer dust is allover the back off my car.