Here's where we disagree. To make such a claim using the RFRA, the person would first have to show that the service in question represents a substantial burden to the exercise of religion. That hurdle is not a guarantee. I find it hard to believe that a court would reasonably find that taking a cupcake out of the display case, and handing it to someone in exchange for money, represents a substantial burden on the exercise of religion.
And even if that hurdle can be cleared, the government entity then has the opportunity to make a case that the substantial burden is in furtherance of a compelling government interest, done in the least-restrictive way possible. The right of public accommodation is the compelling government interest, and I can't think of any less-restrictive means to further that interest.
