> Countryside roads that normally get very little traffic can quickly get clogged.

Truth. I have a piece of land way out in the sticks here in Mena, AR, and on the rare occasion, our little backroads get very clogged up (think hunting season mostly), though we are right in the path of totality for the eclipse, and the town is even having an "eclipse festival" building up to it.

I'm thankful my wife and I won't have to drive anywhere that day. We're going to hang out in the yard and view it in our little field. Keeping my fingers crossed for nice, clear skies that day. :)