Cell Reception in the "Boonies"

In about twenty minutes we will heading out to pick up all of the gang to go see "Boys Like Girls" at a concert. One of the teens lives way out in the boonies, and I pray we have adequate cell reception in case we need directions. This will definitely be an adventure! Well, I had better finish getting ready or I'll have two mad teens of my own to deal with ... and goodness knows I don't want that! ;)