Several times when I was still married my AXH would tell me he needed help and want me to help him find the fixes...which was me trying and him doing nothing except sulking... I researched, I read, I looked into treatments and programs... I drove myself nuts trying to fix his problem for him. Of course none of it ever worked. Even when he did drag himself to AA he didn't engage and of course failed at staying sober.
If your STBXAW isn't capable of making the calls, she isn't ready to do the work to get and stay sober.
If she is willing to get herself set up for treatment, and then needs a ride I'd be willing to get her there. Mostly because if she is drunk she shouldn't be driving and risking other people's lives.
Good luck to both of you.