You're very lucky you caught it early enough to do that. I'm sure a little weaving and you'll be all set. The first time I did that was on my second sweater in the round--never get complacent--I was sure I checked it but I was an inch into it before I realized what I had done. I have since read that you can sew and cut this mistake if it has a steek, but I didn't know that then.
I know you didn't need a response, but it's good to know that we all do the same stuff from time to time.