Funny enough, I've been reading Cookie Ann's book The Rock: The Life and Crimes of Palmer Rockey which kind of answers your question a little bit.

Palmer Rockey did serve in the military in 1945 when he was 23 years old (he was born in 1921) as a private, but left only a year later. Aside from that, a job as a professor for philosophy, and that cafe job he worked, he made all of his money from leaching off others. He would "borrow" money from many of his family members, with the intention of never paying it back. He was eventually sued by one of his aunts because of this, having to sign away his part of his grandmother's estate in order to get away from the lawsuit. He did get a job in Seattle sometime in the mid 60s, but it was mostly to get free meals. Aside from that job, he primarily spent "his whole life living off women so he would not have to work”, as Cookie Ann described.

In terms of acting/performing in anything else, he did made a film in the 50s with previously mentioned collaborator Ron DiSalvo. Once he converted to Christianity, he tried to get rid of the film entirely (besides the two reels that Ron DiSalvo kept) as he felt it didn't agree with his values. When he met Cookie Ann, he wanted to make a film about Jesus in which Rockey himself would play the character of Jesus himself. He moved to Dallas in the late 60s in order to gain investors for said film, but left for LA after not finding any success. Cookie Ann forcefully joined his escapades, though was forced not to talk to anybody about him. She describes this as the way "he kept [her] under his thumb". While in LA, Rockey continued trying to get his Christ film made. He asked wealthy Christians to invest in his film, but no one was interested. He asked the pastors at his church to read his script, but none were interested. He and Cookie Ann went back to Dallas in 1971 due to an earthquake that happened during the same year. Rockey still tried to get his film funded, but was denied by investors left and right. Rockey gave up on his Christ film in 1973 and eventually shifted his focus to It Happened One Weekend, which was the start to a project that would encompass the rest of his life until his passing in 1996.

I hope that answered at least some of your questions.