Public intoxication is not a crime. The Commonwealth of Massachusetts no longer treats adults who appear intoxicated in public as possible criminals requiring an arrest, as long as you interact responsibly with those trying to assist them.
Instead, the state tries to help such people find a safe place to obtain treatment or where they can remain protected from added difficulties. Assuming you are of legal drinking age, and not thought to be a public menace, you shouldn’t face criminal charges in most cases.