Need help getting a friend out of Gay Therapy!

Howdy all! I don't know how these things are still fucking legal but a friend of a friend got shipped off to a therapy to "get cured" (rolls eyes) somewhere in Oklahoma.We want to know if there is a way to get him out. We don't have any way to contact him. The parents are the ones that sent him and he left for the camp on Friday morning.Back story on him, he's 22 from Nebraska. His parents started cutting off his access to his car, job, and school as he is currently financially dependent on them. His parents gave an ultimatum to go to this therapy or to continue getting cut off.What if anything can we do about this? Would we be able to even file a missing person's report?Thanks in advance!