Not places who define their workplace as being both on and off the field.

If the NFL wants to re-write their entire code of conduct to exempt non-play activity from their employment contract then they can be like "many places of employment."  But, like any organized workforce, management will have to BARGAIN for that point at the next contract negotiation - not dictate from on-high. 

Why do you keep bringing up such ridiculous claims as if no one has thought through these items before?  You remind me of Trump: "Did you know Lincoln was a Republican? I don't think many people are aware of that fact."