Sacrilege is a pretty serious charge. If the Church chose could they discipline him for this?
And if any Catholic, clerical or lay, has any doubts about it, it's right there in Canon 915 in explicit black and white, made even more explicit in Cardinal Raymond Burke's (canonical) legal analysis (and Burke is head of the equivalent of the Catholic Church's Supreme Court.)
Who could discipline Dolan? He has no direct superior but the Pope.
What will Pope Francis do? It doesn't seem high on his priorities list.
At his installation Mass there wasn't even an announcement made--- as there often is even in ordinary parishes at wedding and funeral Masses --- that Communion can be received only by Catholics who have prepared themselves by fasting and are in a State of Grace --- and all others are invited to come up, if they wish, with Holy Eucharist but simply to ask for a blessing.
That wasn't even done.
. . . . . . . . .
OK. So what can we, the laity, do?
I'm telling you, if we had the zeal of our ancestors in our veins, there would be Knights of Columbus with more than ceremonial swords defending the Eucharist. Martyrs died for this.