There are just some things I don't see as absolutes when it comes to rules and laws. Sure, a lot of them are there for our protection but some, like a person smoking some pot in their house is really not so different from a happy hour that includes alcohol. The people around me who smoke have a rule of their own that after getting high, they don't drive. I have often seen that not be the case after cocktail hour at home. In fact, the drinks at home are often the warm up to hitting the bar, club, etc.
I'm your huckleberry.