These guys live right near my deck ,, and I know this is hard to believe but the baby comes to me when it sees me out there .... of course I feed them ... left over cat nibbles, and bread..
If I come across one on the road ... STOP the car!!! get the towel, (always in the car for emergencies like turtle rescues. Land turtles too. ) I then ask it "where are you trying to go?" and carry it to the other side..