To be honest, for people saying this I don't see much happening from it. I doubt Tesla will be the charging police. Really, it would be up to the local authorities to give a ticket or something of that nature for double parking. With the amount of superchargers going out and the thousands of Model S vehicles going out per month, they would need a Supercharger team to fill reports out on ICE's alone.
Sorry for being pessimistic/realistic but reporting this I feel doesn't do much good except garner rolled eyes and "Sure we'll look into it" empty promises. In the end, what can Tesla do about it?