This is what they emailed back when I emailed them regarding the situation.

Thank you for your feedback. We are taking this very seriously. While we don't comment on personnel matters out of respect for any personnel or students involved, please know that we are reviewing with legal counsel our appropriate response and investigating the matter. His statements do not represent a statement or the opinions of the Iron County School District. In fact, the school district ensures that where it may be a matter of free speech we are very serious about protecting free speech. However, all matters that affect the educational system adversely are not protected and above all we want to make sure that the educational process and the education for our students is protected.