Uk, i feel for you but if you are two hours away and dont have almost daily contact with her you have a huge uphill battle. As you are finding out, you can send letters, leave messages, cease and desist or have your ex "lay down the law" but unless you are close to enforce it you have a tough road ahead of you. The devout jw does not give two shits about your being the father. After all your child will be told "Your father doesnt love you enough to live near you" "your father doesnt love Jehovah" I was in a similar situation although I lived alot farther away. I made the move a few years ago and believe me brother, it was worth it. If you have a kid that there is the slightest possibility they will be taught the jw lifestyle then there is nothing more important than getting them out. NOTHING!!
Good luck,
pbrow