I think you made the right choice.
I know my MS walker would have declined. She's been told that the only person who can give her a ride is a specific neighbor who will sometimes drive her daughter if the weather is very bad.
She has, however, had someone toss an umbrella out of the window at her once. She forgot hers because it wasn't raining when she left but a downpour soon started. Too far from home to turn back, she just trudged on in her hoodie. She said she wasn't even sure if it was a man or woman in the van, but it beeped at her, she turned to look and an umbrella came flying out of the window. She said the driver waved and went on, so she felt it was safe to go pick it up.