Well if she reached out then maybe just help her with info. Does the company provide insurance and if so they often offer a few weeks in rehab.
I would add to Pelicans answer and offer to drive her there. Maybe attend an open meeting with her IF you would like. I say attend meaning supporting her in a time when she needs a friend.
If you aren't that close then a printed out AA list and an offer to give her a ride. Even strangers help out people in need..
AG