No such thing. They only made 8 69 T/A convertibles, 4 autos, 4 manuals, and all were equipped with white tops. They did have blue interiors and blue convertible top boots, but no blue convertible tops. There was 4 blue vinyl roofed coupes, and 2 black vinyl topped coupes out of the 697 total.
I seriously doubt the blue topped 67 Pace cars were factory cars built for the indianapolis 500 like the white topped ones with the various FSO numbers. No doubt there were a few there, but they were just white convertibles with a black nose stripe and were most likely something drawn from local dealer stock and delivered to the track to have a few more camaros on hand.