I did finish it and fix it. It was a two step process; I gave up on having the stitch pattern 'work' and went back later and fixed it. Here you can see it before fixing:
There are two ways to fix stuff like that. You can unravel the whole area (which in my case was about twenty stitches wide), put the stitches on a needle five or ten rows back (or however many rows it takes to get beyond the problem), and re-knit the area. That's the fastest way. Or, you can run down one stitch column at a time and use a crochet hook to pick the stitches back up again, doing knit or purl as needed. (The 'hook' method won't work with cables or lots of decreases/increases. FYI.) Because I was using VERY slippery yarn and there were short rows in there, I used the one stitch at a time method. That way, if a stitch got away from me, it was only ONE STITCH, instead of a huge swathe of them.
It took two and a half hours, but it's fixed now. Still a little ripply, but it should block out.
Just over halfway done, with one week left in the month. I should have known better. Two-year-olds and major deadlines don't mix too well.