You are not going to get the family in trouble and i doubt they care up there in bkk they don't if they do gf fills in a form and you might have to pay 1500 fine.
nok chi busses single story bus. Probably spelt wrong. English movies meals and you arive at Mukdahan 7am ish. I've never had a problem with them. Some companies are a nightmare.
I have never waited for my number to be called to pick up a visa just waited in line and handed over my number. I thought the number was to find your passport faster.