Oh man… good luck! I found a 33 inch beast nesting in my LR as my first ever hitch hiker. The rock was gone, don’t care what happened to it. That nightmarish creature can burn where it belongs. But really, I wish you luck with it, you will most likely have to get rid of the whole rock it’s in.
I got INCREDIBLY unlucky with my first ever hitchhikers. It wasnt just ONE bobbit but it was multiple. There were Atleast 4 in the rock. I’d assume 2 adults, 2 younger ones by size (One adult was 33 inch, the other was a nasty 24 inch and the two younger ones were 4 inch and 7 inch).