I to would have said the same thing except I would have said if you want to talk about it I have a few minutes. And as for respect, no I don't respect there beliefs. Especially when I can google hundreds of examples of what their religion is doing wrong.

Once I've said "atheist" they don't pay me any attention and launch into their pitch anyway.

When they give me a chance reply, they hang their head in shame and wander away to the next house.

That's a nice exchange. Most of mine go that way but sometimes they still want me to "look at the trees."

You just wasted a big opportunity to convert them and help the humanity.

I will join in with the "well done" bunch......spread peace, not anger.....after all.. I was once as mis-guided as they......tomorrow they might be allies.

You need to get you one of those realistic looking plastic alligators, and a sign saying 'Solicitors Will be Eaten!'

It would be nice if they were all that respectful of others! Most of the ones I talk to won't stop talking or accepting that I'm not interested. They continue to harangue until I slam the door or get irritated. I try not to, but fail often.

Try going to their house and see if you could convert them to Atheism, how would they respond to that ?

You indeed struck a rarity on that one.
Usually, in my experience, once being an Atheist is mentioned, they get very uppity/condescending/confronting,etc, and even, at times, aggressive even though I've been quiet, calm, courteous and respectful.

"I saw the surprise in the man's face. He was speechless for a few beats. Then he said " I thank you for your candor, most people are not honest in that way" "
I would have told them maybe if your fellows didn't treat people who atheist like shit we could be more honest....