If it is contained to a certain area, you can sand say the whole hood with 600 grit. Then just put a couple coats of high build primer over the chipped area (and blend it into the rest of the panel) Sand it down and sand to blend area (400 wet would work well). Wipe it all off and check your work. Then hit the whole thing with 600 again. Once your happy with the work, you can spray the paint, either just blend it in, or paint the whole panel. Clear the whole panel either way.
I know this seems difficult, but really it isnt.
Also if you dont want to have it happen it again, they make a 3M film that can be used to cover and protect the new paint.
Oh and also dont wax new paint for 90 days.