So, I am driving through Manhattan last night, my 2003 tiptronic base box hit 74,250 and my CEL came on

. Don't know what it is, I'll get my local autozone to diag it. Problem is I won't be able to get to it as I am going to Oklahoma for a week.
Car drove fine on the way home, I took it easy. Hopefully it's just some stupid sensor somewhere. I checked the gas cap and made sure it was tight, so that's one variable checked off the list.