I live in New York, and there are street evangelists everywhere. Rather than argue with them, I've started using one-liners instead.
Street Evangelist: Jesus loves you.
Me: Yah, but he's not IN love with me.
Street Evangelist: Have you accepted Jesus as your personal savior?
Me: Thank's but I'm already seeing a savior.
Street Evangelist: Jesus is knocking at your heart's door.
Me: And it's frustrating. I have that Do Not Disturb sign there for a reason.
It must be awful. A definite encroachment on your right to walk down a street peacefully. Let's pray (I'm joking here) that it never happens here in England.
For the last one I think I would have gone with "Oh thank god it's only Jesus. I was afraid it was a murmer."