I watched the game and was taping the ceremony but The Phillies went into a rain delay just before Roy Halladays induction started that ended just after Brandy Halladay's speech ended. It was eerie.
This was bizarre it took a long time for security to grab him and they didn't chase him down just allowed for him to walk on the field , walk up to Brad Miller (who backed away) to try and shake his hand and walk up to the security guard by the Phillies dugout. It was bizarre.
Here's another angle