Can they do this?
To sum up: During the Dodgers/D-backs game at Chase Field a bunch of Dodger fans decided to buy some pricey suite seats behind home plate. The D-backs' owner found out and ordered them to either move, or put on D-backs gear.
Can they do that? It can't be simply because they're visible on TV; I've seen plenty of games in other ballparks in which visiting fans can clearly be seen behind home plate.