Thread title: I have $800 for a 2 week road trip from Michigan to New Mexico

Hello everyone, I am going on a road trip from Michigan to New Mexico in 2 weeks. I have $800 for expenses. I will be driving a ford f150 (gas will probably be the biggest expense). I will be sleeping in the back of my truck but I have a tent and sleeping bag just in case. The only other expenses besides gas will be food and not having a shower for 2 weeks. I don’t have a shower to stay clean on my truck so I will have to pay $10-15 each day for a shower. What are the best options for showering and eating?