Cuba ain't far. Why not just go there?
"The United States and Cuba do have a treaty, but chilly diplomatic relations have meant it is rarely used. ... Moreover, the following countries have been known to refuse U.S. extradition requests, despite having treaties: Bolivia, Ecuador, Iceland, Nicaragua, Switzerland, Venezuela and Zimbabwe"
Edit: Its only wise to go to a different country if what you're in trouble for isn't a crime in said country