Huge sigh of relief.
I knocked my tea mug over on my MacBook just as I was leaving work. I soaked it up and tipped it on its side for the ride to my temp home, went for a ride on TurdBike, and then tried starting it up. It hung on the start up screen for an awful long time. Seems to be ok.

It was chamomile on its third steep, so it was pretty watery. Hopefully it doesn't get gummy when it dries.