No, that is the law. Just showing the relevant parts:
"Whomever, ...
(2)
by force or threat of force or by
physical obstruction, intentionally injures,
intimidates or interferes with or attempts to injure,
intimidate or
interfere with any person lawfully exercising or seeking to exercise the
First Amendment right of religious freedom at a place of religious worship; or ...
shall be subject to the penalties provided in subsection (b) and the civil remedies provided in subsection (c), except that a parent or legal guardian of a minor shall not be subject to any penalties or civil remedies under this section for such activities insofar as they are directed exclusively at that minor."
www.law.cornell.edu
It is an illegal act, like bank robbery.