I watched the speech too and the camera showed several uniformed cops around.
I saw one huge balk guy in a suit and tie, and then a really small guy in a suit and tie.
And Milo said after about 7 minutes that he had NO police protection that day and that the huge balk guy had been HIRED.
https://www.youtube.com/watch?v=xLqkizGtFo0
I saw the whole thing and have no recollection of any uniformed cops.