i have tried this before myself...i have a blind friend who stood across the street from them, the day they organized a catholic parade concluding with harassing the hope clinic...a sort of protest against a protest.
my friend who was blind held a sign that read "i need stem cells" - which to me and the group we were with, was funny.
they did not think so. they pulled their van with aborted fetus pictures on it in front of us and began to cry in front of us and tell us how they were born agains and tried bludgeoning us with the bible.
after we had a conversation - they invited us to their christian radio talk show. we declined, knowing it would consist of getting screamed at in their home court, and label us to the crazies out there who we were. i do not want any christians trying to kill me.
what i found was - these people were incapable of discussion - and you are likely best served staying away. they will only judge you, scream at you, and keep a closed mind...even if you are on the same religious side as them.