Personally I think Kap could find a better way to bring attention to something he wants to. That said, it's his constitutional right to protest peacefully however he wants and however rude or disgraceful people may find it. 

 

I am sure some would refuse, should that actually be part of their tax payer funded jobs, but as is the case where most cops are not bad I am sure most would do the job anyways since protecting and serving is a much better way to counter protest this type of thing then just not doing it. However, as others have stated these cops usually take stadium security gigs as side jobs for extra cash and if they don't want to out of their own form of protest than that is just as much their right as it his to sit, kneel hop around whatever. As is the team's right to not want to deal with a circus, should that be the case.  

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