They can wet sand it out, then reclear the hood. There are no matching issues or blending required because it is the clear coat, the color coat is below the clear. They don't have to sand into the color coat. You will never be able to tell the difference when it is done. The rest of the car will be masked off and not touched.
If you want the A pillar repaired, it will also have to be sanded and resprayed because if it is polished after sanding, the texture will be smoother than the rest of the car. I would leave the A pillar alone, because if they spray the pillar they will have to spray the roof. If they spray the roof, they will have the to spray the quarter panels. One can not blend clear, the clear has to be taken to the the next panel gap. If the run on the A pillar bothers you, I would suggest that it be sanded and polished and left at that. The A pillar is such a small area that the texture difference will not really be noticeable.