The internet is wonderful!
Never underestimate the power of a phone call though.
Selfishly this gives me a chance to tell a funny story. Trying to contact a friend years back I had to keep calling the jail. They kept hanging up on me. You see, in order to look up an inmate they had to search...
I know this isn't directly helpful, but try calling the prison. They might not give you too much info depending on who answers the line, but they'll give you an inmate #.
If she isn't getting out super soon, you can write her - just put her # after her name.
Man, this makes me reminisce on the old days living out of my car. I can tell you one thing, being in a two door hatch for a while will make a sedan feel like a regular winnebago.
A van would be the bee's knees. They're so spacious!