I fear that you worry to much.  Given your theory we should remove all the "no parking signs" or "no drinking or camping in the park signs".  This is a church..... sacred ground?  I'd say so.  A church. that opens it's doors to very needy people..  The signs are the ten commandments.  Not a new idea.... as old as the bible, As ordinary as the menu in any McDonalds.  What would you expect in a church.  Soda refills for dining in customers only?