The post-Hobby Lobby ENDA is wide open to laws like Mississippi's, or Arizona's (ultimately vetoed) bill, which allow for the denial of service to people, if it's based on religion (so, based on sexual orientation).
The AP reports:
Sweeping carve-outs for faith-affiliated adoption agencies or individual wedding vendors will be an uphill battle. Public attitudes against exceptions have hardened, and efforts by faith groups in states where courts, not lawmakers, recognized same-sex unions have had little success.
Unfortunately, this may hold less true in some places. The AP article continues with a quote from Robin Fretwell Wilson, a legal specialist from the University of Illinois. She says:
Some of the states are so red — think South Carolina — that the legislature can likely lock down all kinds of religious liberty protections, even those we have not yet seen adopted anywhere, like protection for the small mom-and-pop wedding professionals, simply because they have the votes of like-minded colleagues.
Another example of Hobby Lobby-related problems presented by the article is that of Utah Republican State Representative Jacob Anderegg (pictured). The senator plans to come back to a bill he had held off on introducing for the last two years, while the fight on gay marriage was in full swing. Senator Anderegg's bill would allow clergy and justices of the peace to refuse particpation in same-sex weddings.
Said Anderegg: The bill reasserts and re-establishes fundamental principles: I have a religious objection. You can’t force me or compel me to do it."