I am not sure. You would have to ask The staff.
It doesn't hurt to ask but I can't imagine you would be able to do that at any bar in the area, especially during a Yankee game. The area will be packed and that's a pretty major potential security risk. You could call the stadium and see if they have a coat check type program that you could utilize...
I seriously doubt it but maybe ask a manager to put it behind the bar. Wouldn't reccomend it though
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