hey welcome to PO.com! its really something for a new member to post his/her first post in this forum

hope you will find this forum useful as well as this entire site as a whole.
anyways, what i think youre seeing is rusted rail dust. whats rail dust? basically its all the contaminants and junk that gets collected on cars as they are transported by train to their dealers and such. it gets stuck on your paint like most really small contaminants. after a few washes or sitting out in the rain, i guess the metal particles in the rail dust started rusting.
first thing to know is that rust can be harmful to your paint so i suggest you dont put off trying to fix the problem till several months from now. try gliding your finger across the paint after its been washed and cleaned. can u feel the little rust spots? does the whole area feel rough to the touch and not smooth as glass?
if u can feel the little rust spots, then it could be a good thing caus its not too deep into your clear coat. what you should try using is a clay bar to clean up your paint and probably pick up those little rust spots too. i suggest you try Magic Clay which can be found in autozone (i dont think other places have them yet). afterwards you should be able to clean up all the contaminants and rail dust and your car should feel super slick
hopefully that will fix the problem. if so, while youre at it, add on a new coat of wax after you clay bar