Using 'Hobby Lobby' to refuse a subpoena about child labor

During oral arguments in Hobby Lobby v. Sibelius and subsequent written opinions, the Supreme Court debated the case's unintended consequences.

Would laws requiring vaccinations or prohibiting child labor, for example, now be affected by the new interpretation of RFRA? Or would the "parade of horribles" never come to pass?

A new case from Utah provides a surprising early glimpse: a member of the Fundamentalist Church of Jesus Christ of Latter-Day Saints (FLDS) has successfully refused a federal subpoena based on his religous belief in secrecy.