I think that's where the zoning and building safety codes kick in. When it's advertised in public, for the public to attend, that's where ADA laws become applicable. Many officials and private citizens cry discrimination when something 'public' is done in a non-compliant building with access not set by ADA legislation. There's a person in my area that throws the ADA-book to associations and businesses to force compliance, gets the state involved - it's not pretty.
So bible studies and churches are not allowed to put up signs?
Not only do we have religious discrimination, they also want to violate free speech.
Sounds like some real 1st amendment hatred going on in this burg.