Update for people who want to travel to Myanmar with their Birmese or Thai wife or girlfriend.
When staying in a hotel you now have to show in a form that has approval of your ampoo Amphur in Thailand that you are staying in a hotel..
We found out the hard way and my Birmese wife luckily has her Birmese ID card here in Burma so she got that from her mothers house and when showing it at the hotel lobby she could stay.
So,ask the Amphur in Thailand for a form that he or she is going to Myanmar and stay in a hotel.