My first recommendation is always First Baptist Church since it's nearly on campus and the pastor is a dear friend. I'm not sure how much they charge for parking. You'll definitely want to be there early. The address is 375 W King St, Boone, NC 28607. The walk from First Baptist to the stadium is an easy one by Boone standards.
The other favorite is the Watauga Social Services lot. That address is 132 Poplar Grove Connector, Boone, NC 28607. This lot is free and has a shuttle that runs to the bottom of Stadium Dr. Without the shuttle, it's a pretty decent hike from the lot to the stadium.
You may also check here
http://www.appstatesports.com/ViewArtic ... =209611809 for more information on game day. There's a link to the Appalcart routes on the Parking tab.
My advice is to come early and enjoy Boone. We're expecting clouds / rain and mid- to low-60's. Umbrellas are not allowed in the stadium, so be sure to bring your rain gear. Parking may be a bit easier since the fair weather App fans are falling off the bus pretty rapidly these days. Who knows what we'll see this weekend with homecoming? Travel safely.