UCSC doesn't do grades (at least they didn't used to). They gave you the option of a more standard system on our transcript for situations like this. Ask your registrar's office.
My wife has a childhood friend that went there. I think she spent her freshman year living in a teepee, and then realized that the stress from school and the man and his grading system was too much, and dropped out. Last I saw her, she was borrowing her parent's Honda Hybrid (at age 28) to crate roadkill home to her commune in Eugene. She actually looked much like my avatar back in the day, not so much now.