I was there. I saw you but didn't stop you. since I figure at these things you probably have more than enough people claiming on your attention.
It was a very packed crowd. So much so that I actually gave up on getting a drink from the bar and decided not to wait out the autograph line, even though as far as I could tell they were going to wait it out for everyone. Otherwise a very similar event to the Vieira M&G last winter, and the city in the boroughs events from last summer.