Don't get caught sending turtles or snakes via USPS. There is a huge fine and possible jail term for doing so. It only takes one superviser to see a turtle when they xRay the box to get you arrested.
: I had 2 hatchling RES shipped to me via Usps a few months back. I think they did great. The guy I bought them from shipped them on a tuesday, and I recieved them on a saturday. which is a long time for a hatchling. The were a little dried out, but healthy and happy. The best part is, it only cost me 3.50