ok, I looked up these nut-jobs on wikipedia, and I must say I am shocked and appalled at their disgraceful, disrespectful, rude, insensitive, extremist, racist, and downright outrageous behavior. I myself am a Cristian and can't support or condone what they have done and what they are doing.
If I were you, I'd do what this college did:
Wikipedia wrote:
On April 10, 2008, a 6-person representation from the Phelps group picketed at the University of Wisconsin–Stout in Menomonie, Wisconsin—only 15 minutes into their scheduled 1 hour picket, the group retreated from the campus with a crowd of nearly one thousand students marching behind them shouting "go home, go home." According to the group's primary website, the picket was spurred by a recent house fire that occurred in Menomonie killing 3 students. The deaths were labeled as "fires sent by God" by the group who claimed that parents were to blame for "teaching them to be ****** and *******".
Just tell their radical hate group to "GO HOME!". If I ever found them, that's what I'd do.