How can you tell if you had it with no symptoms? I don’t want to go on record that I was tested one way or other.
I believe you could donate blood at the red cross and they may provide paperwork to you about your antibodies. I suppose that might somehow get your test records “into the system”, but it could be a way to go outside the core US healthcare industry.
www.cvs.com
Less than $40 for an antibody test.
I don’t think that all urgent cares ask for ID. You could give a fake name say you forgot your ID and bring cash. Probably around $120. I’ve had a few