If the pool was covered, I'd expect high CC. Chlorine, circulation, sunlight, and time will get rid of it. You're almost at shock level anyway, add a little more bleach to get it up to about 14 and leave the pump on all day. Give it a good brushing to get water moving in the dead spots like the corners. You're done shocking when:
The water is clear;
An overnight FC loss test shows a loss of 1.0 ppm or less;
CC is 0.5 or lower.
I wouldn't be at all surprised if you aren't able to swim this weekend. Well, if you can take the chill, that is!