You know, discussion on this board would be a lot easier to conduct if people bothered to find out what they're talking about (or what Rush Limbaugh or Rachael Maddow or whoever they're quoting was actually talking about).
The Hitching Post is not a church, it is a business.
The Knapps aren't pastors, they're business owners. They may be ordained, that has nothing to do with their business.
In the Texas case, the city didn't decide to just pry some information from the Pastors. It is requesting documents as part of discovery in a lawsuit filed by the people they want the documents from. If the churches don't want to produce documents required by the court, they can drop the lawsuit.