I don’t know. Maybe I could worked with HR for more but our employee manual said they would pay for two weeks and this was a company that was generally pretty understanding about personal matters. Certainly an hourly employee or someone self employed is probably not getting any sort of a deal.
I wouldn’t have been fired (which seems a different case) but being largely unable to, say, make sales calls or other external activities for 6 months I would expect to have consequences even if just as simple as underforming my peers. Maybe a manager would understand and take it into account but I wouldn’t count on it. It doesn’t have to be blatant as in your example.
If you perform nearly any work at all in a given week you're entitled to your salary, and they can't fire you. They might be able to take away the $15/day stipend from your pay, and there are obvious additional negatives (6 months with limited context and practice of your craft will reduce your performance when you get back too), but that 2-week cap is a lawsuit waiting to happen unless they also forbid you from doing any work while on jury duty.