UPDATE!
She was given a reprieve. The vet took one look at her and said she's not ready yet. She can sit up on her own. Her appetite is very good (even for her). She has control of her bowels and bladder. We stood her up in the back of the SUV and when we place her hind feet where they should be she stood. It wasn't long and she swayed, but still stood solo.
Mark (vet) said she is definitely worth giving a try, so gave her a shot of dexamethazone, then sent us home with meds. I didn't look at the bottle, but I'm sure it's pred. Five days she gets it twice a day, 5 days once a day, then every other day. Definitely a steroid.
So, I drove home with my little old lady still demanding and still the Diva that she is.
By the way, for people who need a sling and do not have a chance to go to the store or make one, here's an idea I got on the fly today since the towel was so difficult to handle. If you have the large and not too stiff canvas bags, roll them up but have the handles hang out either side. Voila. Instant padded sling with handles.