Just because you have a right to do something doesn't always mean it's in your best interest to do so.
Police give warnings on precautions to take all the time. They do so for a reason.
Like I said earlier, you should have a right to go anywhere in this country but sometimes if you are the wrong color or at the wrong place or just have some bad luck or countless of other things, then something bad could happen.
Use some common sense and exercise some good judgment. Let the NFL and the Eagle's organization clean up the problem first, then wear your jerseys. Until then, wear them at your own risk.