meetings while on vacation

I'll be out of town for Christmas and missing my local meeting. I just
checked the web and found a meeting that is near where I'll be. I'm
wondering, what happens when you're at a meeting that isn't in your normal
area? Do you still pay the same amount? I've prepaid and have coupons I
give as my payment. Can you just show up at another meeting or should you
call first? I do know to bring my card, but I was wondering if there was
anything else I should do.
--
the volleyballchick