My reply to them:
I have read with interest and concern your determination to turn the Salvation Army Kettle ringers away from your premises. I know that it is fruitless to attempt to sway your decision, so I won't.
Today I had an opportunity to read an official statement from your organization (printed below). This statement proved to be the deciding factor in my decision to spend my holiday dollars (and the dollars to follow after the holidays) elsewhere. Did any of you that aren't lawyers actually read this? Don't you recognize how weaselly you come off sounding in this communiqué?
No matter. You have the prerogative to conduct your business as you wish (however foolish). Likewise, I have the prerogative to spend my hard-earned monies where I see fit. I find your conduct offensive and unworthy of my continued support.
Enjoy the fruits of your decisions.
{name}
PS: That leaves me with a few extra bucks for the kettle!
Good one!