If you plan to take I-80, you'll travel through the state of Iowa. Without being too specific, I live in a city located along I-80 in the state of Iowa. I'd love to meet you and help out if I can. I may not be the only Iowan bitcoiner, but I have yet to meet another. To my knowledge, there are no businesses that accept bitcoin in the state; however, I've managed to use Gyft to get most of what I need. @LifeOnBitcoin, PM me if you would like my details.
I'll PM you. There is a high likelihood we will be using that route as we are going to Chicago. Can you try to get a local mom and pop restaurant to accept btc? We could do lunch with you on the way through to Chicago. Also, if you could talk to local gas stations, and get one on board, that would be awesome! I'll PM you later this evening.
Theron H.