A really sad case, I think I would have stayed put at the party until the next morning. Years ago my OH was breathalysed as we were taking a friend home from the pub, he was slightly over the limit so they locked up the car took him to the police station, and left me to walk home it was almost midnight by this time. I was absolutely petrified, fortunately the friend took me to his house and phoned for a taxi for me. This was before mobiles were the rage. OH was home before me his reading was below the limit by the time he got to the station.