you could repair-por15 the area, then cover the A-pillar rain gutters with the Ruf aero-aids painted body color.
http://www.weissach.com/ruf_parts_details.php?id=R9650055900
here is mine:
i had a scratch in the paint of the driver's side a-pillar from a windshield installer's screw up.
now the scratch is hidden, and i pick up some top end mph, and probably loose a half db of windnoise
max