Why was Priyanka Chopra's Millions of Milkshakes event in California shut down by the cops?

We hear that the police stepped in at Priyanka's Exotic milkshake launch? Did PC get into trouble with the law in Los Angeles? Well, not really, so you can relax. Priyanka Chopra was at Millions of Milkshakes in West Hollywood, California, yesterday for the launch of her very special Exo featurednews