I feel that more than one is inappropriate for this situation regardless.
FYI - one beer is ILLEGAL for this situation, regardless.
I get concerned when people decide they'll abide only by the parts of the law that seem appropriate to them.
If you don't want to abide by the law as it's written, then call your legislator about changing it.
Just tell 'em that it's your 2nd Amendment Right to be able to enjoy a cold brewski at the bar while you're packing heat.
I'm sure they'll get right back to you on that one.