According to the Washinton Blade (the paper which caters to gays in DC), it seems that there will be "respectful but forceful" protests against the Pope. For more, you can read it here.
I did find an interesting fact that Heather Mizeur, the openly gay member of the Maryland House of Delegates, is a "practicing Catholic." But she cannot be because she is in a lesbian relationship. This is not a relationship that the Church condones.
According to her election website, she is a member of St. Aloysius Church, (19 Eye Street,N.W.Washington, D.C.).
I wonder if she is taking part in the sacraments and if the pastor and parish staff look the other way. I also wonder if they support that particular lifestyle. My gut feeling is that they are.