This an interesting situation, I myself am torn on how I feel about it.
Kinda reminds me of a non-football, real-life situation that involves the bathroom at McDonald's. There is a big sign in there that says employees must wash their hands after using the bathroom. Here's the problem: If I work at McDonald's, but I'm not working when I go in there, does the sign apply to me? Since I'm the customer at the time, I don't necessarily have to wash my hands, but is that wrong? I'm still an employee there even if I am not working at the moment, but I shouldn't have to follow the sign.
But what if my manager comes in and sees me leave the bathroom without washing? And is it unethical for me to wash my hands, as the customer and not as the employee, but to not use soap as the sign directs. The manager will never know that I didn't use soap, and I, as the customer, have not broken any rules.
I stay up late at night thinking of this sometimes and I have decided that I will use the KFC bathoom instead of McDonald's.