The white with blue interior 1969 Camaro RS/SS 396 convertible acquired for the NASCAR Grand National event earlier in the year was also used as the pace car for the Sports Car Club of America (SCCA) National Championship Point Road Races held at the Riverside International Raceway, in Riverside, California on September 27-28, 1969. This was another event that had multiple different races for differing classes of racecars, so the Camaro must have paced several races that weekend.
Notice the 1967 Camaro racecar just to the left of the picture behind the pace car. There also looks to be at least one 1969 Camaro race car, if not more.
This picture came from the Remembering Riverside Raceway Facebook page: https://www.facebook.com/groups/137363969953355/
Dash plaque and cover of the souvenir event program
worthpoint.com