How far will the religious right take the 'religious liberty' argument?

An incident took place in Illinois recently which illustrates how dangerous this religious liberty card that the religious right pushes can be so dangerous:

A same-sex couple from Davenport, Iowa says they were banned from possibly renting a Moline, Illinois reception hall because they are gay.

The manager of the University Club in downtown Moline confirms she refused to let the couple see or rent the space for a reception because of her religious beliefs.

Taylor Shumaker says she called the University Club on Tuesday, June 19, 2012 to inquire about the place. She says bar manager Kristen Stewart offered to give Shumaker a tour and asked if her fiance would be coming.

“And she asked if ‘he’ would be coming and I just said, ‘No, it’s not actually a ‘he’, it’s a ‘she.’ And she said, ‘Excuse me?’” recounted Shumaker.

“I said, ‘It’s a woman,’ and she said, ‘Oh, we don’t rent to homosexual couples’”

 . . . In a phone interview with WQAD, Stewart says it is all true, and defended her right to refusal.

“I am a biblical Christian and I do not believe in homosexual marriage, that’s correct. And because marriage is a covenant that God created for man and woman, as a biblical Christian, I cannot help them into or celebrate that sin,” said Stewart.

But there is a problem with this. Stewart was the manager. She is not the owner of the hall.

 The article further states:

Stewart is the wife of the president of the University Club, and daughter-in-law of its owners.

She says the family discussed the issue of gay marriage receptions after neighboring state Iowa approved same-sex marriage and Illinois endorsed civil unions.

“My husband’s family does not hold the same view. If there is a homosexual couple I will pass them on to them. I have told him if they want to do homosexual receptions I would not have any part of that. He and his family have decided they will,” Stewart said.

Her husband, Perry Stewart, later told WQAD that his wife initially “mis-spoke” to Taylor Shumaker and there is no ban on same-sex marriages at his banquet hall.

From it looks like, the owners of the hall may not have had a problem with the lesbian couple renting it for their reception. So does Stewart's religious beliefs allow her to discriminate in regards to property that she doesn't even own?

Now the religious right likes to push the argument that gay rights will supposedly force business owners to go back on their personal religious beliefs. They further say that even if it's a secular business, the owners should be allowed to discriminate in accordance to their religious beliefs.

But what about managers? Should they be allowed to discriminate with property they don't even own?

Let's take it further. What if a server in a restaurant doesn't want to serve a gay couple and gets fired for it.

Is it farfetched to think that if this incident happens one day, a religious right organization (such as the Alliance Defense Fund or the Thomas More Law Center) will sue the owner of the restaurant for forcing the serving to act against his/her religious beliefs?

Don't laugh. Think about it.