I'm very confident that they wouldn't. However, I suppose it's possible that I've never seen transit that could be so good that people would choose it over their own vehicles. What would that look like?
I suppose a few of them might do it if there's free coffee on board (or beer, but that would be chaos lol) and it ran on VERY convenient schedules.
People in the US place a LOT of value in convenience, so the public transit system would have to offer something that outweighs that. Do you know of any examples?