Urgent last-minute volunteering questions

Woke up this morning to find the dynamic EV map at mydd is showing a red Ohio, and Bush ahead in the electoral vote count as a result. Yikes! I had planned to drive out to Nevada and volunteer on Monday and Tuesday there, but OH is a bigger prize, and the race is closer there.

My situation is such that I can catch a red-eye out to the East Coast tonight, rent a big enough vehicle to provide wheels to the polls, and be in OH ready to work by sunrise on Monday. This is all on my own dime, as are my lodging and feeding. All I need is to be pointed at the work.

The question is, are ACT or similar organizations able to turn around such very-last-minute volunteer submissions? I'm going to be ineffective in a place which I don't know well, unless I'm promptly provided on arrival with instructions, directions, maps (!), et cetera. It's easy to go to acthere.org and sign up, but how fast are they able to respond to new volunteers right now? I can imagine things are crazily busy.