If you want to take photos at at a CCS event, I believe it is up to the discretion of the person(s) running safety. In the Mid-west region, they will allow one person into a corner to take photos, provided you stay put where they tell you to stay put, and you are not wearing a flag color. Thus it would be advisable to wear black or white for your shirt color. Obviously yellow and red are not acceptable. In the event of a crash, just get out of the way and let safety do their jobs.
Also, Just ask your race director what the policy is on your on-board camera. They may have you tech the bike with the camera just to make sure that it's firmly attached to the bike. Good Luck!