Re: paint issue
Im currently respraying my car with my uncle and we are using an acrylic paint. Normal procedure follows after you paint the car, that you rub it back with a fine grade sand paper, such as 1500-2000 wet grade sandpaper. This gets rid of the overspray/fairyfloss stuff as well as that "orange peel" effect in the paint.
What you have done seems to be fine. Upon rubbing it back you are meant to buff it but by the sounds of it it, it would be hard to get in there with a buffer. You could either use a polishing rag with buffing compound, compound especially designed to buff a car once it has been painted or rubbed back, or you could use some polish i suppose.
You wont have stuffed it up, providing you have use a fine grade sand paper it should be fine once you have polished it back. Try it, have a go and tell us what it looks like, if possible take some photos and post them up.