The two beer limit is a nonsense to the alcoholic and he will view it as some silly rule being imposed on him and to be taken mock seriously for as long as needs to until normal drinking can resume. In the interim, he will take advantage of any occasion he has to drink more when he thinks he may get away with it......"ah, it was my birthday", "ah, we are in a casino, sure everyone drinks there", "ah, we are having a great night out", "ah sure it was xmas", "ah, my favourite team were playing" and so on.....
Thats what us alcoholics do. You are fooling yourself with these boundaries and the only one caught up in them is you. He is just playing the game until normal service continues. For the alcoholic there is only drinking and total abstinence. You can spend as long as you want proving this statement to yourself.