My cousin just called. They are actually going to leave tomorrow, spend tomorrow night with her DH's sister in NJ, then come on up - possibly even in time for seeing part of the baseball game.
It's actually better, in the long run. It turns out that the graduation stuff is all Friday, so they will be out of the house, and therefore I don't have to worry about them coming in whilst we're at the minor league game. If they happen to come back while we're still out - no problem. It won't be the big unpacking and settling in and so on - we'll just give them a key.
Oddly, her DH has an aunt and uncle who live in the next town over from me, and there's talk of a bunch of the family getting together with them, too, so that might be better for us for Saturday's birthday party, etc.
I won't get to spend a ton of time with them, but I'm REALLY glad they're coming.
It's just a good thing that I didn't have anything planned for tomorrow, and definitely a good thing that I got some stuff done today.
The baby is crawling, so I really need to childproof - something I wouldn't be too worried about with the 3 year old and a non-mobile baby, but...
Sadly, of course, every toy we own is comprised of hundreds of itty bitty pieces.