Different situation, but I was at one of the KC games a couple of years ago, and doing my best to make noise when we were on Defense, and encouraging other Bills fans to do the same. The woman next to my wife, a Chiefs fan, asked her to tell me to not make so much noise when they were on Offense, because it was distracting to the platers, which of course made me even louder. (respectful cheering)
At one point Jordan Phillips walked over towards the stands, found me in the crowd, pointed at me and then started waving his arms to get other Bills fans engaged. (I was 10 rows back)
That is a very loud stadium, and it is hard to make an impact as an opposing fan, but I always try...