They can be reached at 609-688-0450. They have an auto-attendant so you can press 2 for CA, 3 for RI, etc. If your state is on there, call and give them hell for opposing marriage equality.
In fact this evening I did a first. I called using my cell phone and gave my name and number and dared them to call me back.
I said, in Twiki from Buck Rogers in the 25th Century voice “bigot bigot bigot, no, sorry I said I wasn’t going to call you that anymore and instead call you what you are, Nazis. ”
I urge everyone to do the same.
Spewing Truth in the face of Lies 
I wouldn’t recommend leaving any nasty messages. They’ll just use them as evidence of how “persecuted” they are and how “militant” and “hateful” gay people are. Cuz, you know, taking rights away from people isn’t hateful. Calling a spade a spade is.
this is where you and I disagree. call them what you wish bigots, nazis whatever you wish, ridicule them they deserve it! because it is the only way we can counter their blatant lies and telling them the stories of the harms petpetrated by their actions upon us falls on deaf ears for them. so ridicule away
my students called