The prisons and terms of my supervised release were required to allow me to continue helping inmates I had been helping previously (making an acception to the condition that I not associate with felons and requiring the prison to allow such correspondence). I wonder if that small crack that gives court recognized and enforced legal protection to me continuing to practice law without a degree could be used to break this gatekeeping?

You weren't representing yourself as a lawyer, with them or in court. I'm assuming that's both the potential problem and the work around.

I wrote their motions to the court, helped them file them, etc. I got a dozen people released during COVID, and those with lawyers adopted some of my work for their other cases. Sure seemed like 'lawyering' :)