I'm out of money...

I'm in a bit of a pickle. I'm running really really low on Chinese currency and can't find a bank that wil change US dollars or an ATM that will aceept my card. I'm in a town called Luchen, on my way to Jinghong. Tonight I'm staying in Jiangchen, another 5 hours from here and I pray they have a Bank of China ,an ATM, or tat the guest house will take pity on me and accpet my US dollars. With only 8 yuan left, I barely have enough for dinner, let alone a night at a guesthouse or tomorrows's bus ticket to Jinghong! At least I have some peanuts for the road...