My daughter also has a bug vac. She loves it. Here in AZ bugs are just a fact of life. They were here first and will be here long after we're gone.
I got up a few days ago and my daughter ran to me and said she "had something" for me. My wife found this guy under a box. She just set the jar over him until I got up. Turns out he was dead.
This specimen lives in our garage. So far we've just left her alone. She's huge and there's always a pile of dead bugs under the web. As long as she remains in her spot she's welcome to stay. The garage door track is a good reference for how big she is.