Does the high school or district have the right to suspend a student athlete based on him using profanity in a locker

Customer: Does the high school or district have the right to suspend a student athlete based on him using profanity in a locker room after they won a game. A teammate put the profanity on his own social media without my son's consent or knowledge. And my son never names any one is the celebration banter he is just laughing and used a few profane words and they danced and laughed.
JA: Where is this occurring? I only ask because laws can vary by state.
Customer: Arizona
JA: Does your son have any court dates or documents relevant to this situation?
Customer: He can file an appeal after they issued him a 30 day suspension. The other guy who posted the social media, labeled the post and put it on his own site was given a 1 day suspension.
JA: Is there anything else the Lawyer should know before I connect you? Rest assured that they'll be able to help you.
Customer: There was a few community members that are from this city and know how the politics and racial issues work here in Tucson and wrote letters against the excessive suspension when Khalil who is my son: Khalil did not make the postKhalil did not label the postKhalil did not put the post out on social mediaKhalil was not aware of the postKhalil did not consent to his private moments being shared in a postIt was not Khalil's phone used to create this telecommunication violationYes he used profanity in a private locker room where the public is not privy