I've had experience in three different free clinics and have NEVER been allowed to do something beyond my scope of practice. I took vitals, collected a very basic history, and did some basic health screenings and education/prevention counseling related to HIV, other STIs, and diabetes once I was trained appropriately. Throughout my 1500+ hours of experience in free clinic-type settings, I have never, ever heard of someone being able to do procedures, treatment, or anything of the sort without the appropriate training/qualifications. Maybe you've had different experience in another state with a different regulations for their safety net clinics, but my experience has been that what you describe is far from the norm and would still be considered highly inappropriate.