After her resignation from the GO, Mary Sue Hubbard ceased to have any involvement in the management of the Church of Scientology. She did, however, resurface on a few occasions during the remaining years of her life. In 1984 she acted as an "intervenor" in the Church of Scientology of California's lawsuit against Gerry Armstrong. He had worked as an archivist for the Church of Scientology, gathering source material for a planned biography of L. Ron Hubbard. He became disillusioned with Scientology and left the Church, taking with him copies of biographical material, including Hubbard's letters to Mary Sue over the years. The Church sued in 1982 and Mary Sue joined the suit, charging that Armstrong had committed an "invasion of privacy". When the case came to trial in May 1984, she told the Superior Court of Los Angeles County that she had been "mentally raped" and "emotionally distressed" knowing that others had seen the documents. She told the court that she had not seen her husband since January 1980, "but I've written him personal letters ... but I don't believe he's getting them" as he had not replied to them. In June 1984, Judge Paul G. Breckenridge ruled against the Church and Mary Sue Hubbard, criticizing her credibility as a witness: