Below are the pages from Bill Grahams’s book “ My Life i Rock and Out”  My comments are below.

I don’t know who spray-painted Winterland, could have been Rozz or Will. It was the NT symbol as far as I know.  We were going to use the Sex Pistols gear so there were no roadies rushing around. We went up the ramp at the side of the stage with Malcolm McLaren during the Pistols encore, not after they finished. Bill Graham was there with six security guys and he told us there was no way we were going on stage and that we would never play a BGP venue.