That sux ... the first one (scrape or door ding) is
You might try your dealer and ask if they do this in-house or farm them out. My dealer runs 'specials' frequently and they are best equipped to match wheel finishes.
http://www.turnersvillecollisioncent...sid-12205.html Surely one on the 'left coast' does it too! And many independent operations run mobile repair rigs that can come to your home or office.
Many repairs/refinishing can be done without breaking down/removing the wheel.