Yup. Same reason one is allowed to yell “fire” in a movie theater. Free speech doesn’t extend to everything, in every circumstance.Individual law's are individual law's that address certain activities the specific law's are created for, so in the ruling of protest outside of a clinic, it isn't the same as protesting outside of justices home's, because that is seen as the attempt at intimidation being used to cast fear into member's of the court's as so to help sway it's opinions into one's favor by such tactics used as that.