Shortcut that changes DND while driving autoreponse?

I’d like to set up an auto-response for when I’m working on a time-limited project, which I think I can do by using Do Not Disturb while driving in manual mode. But I also use DND when I’m actually driving, sometimes for many hours at a time. So I need multiple autoresponder messages.

Is there a way to use Shortcuts to trigger DND while driving and set the custom autoresponse?

There’s currently no functionality in Shortcuts to support dynamic changing of the message. Only enable/disable with the ‘until’ parameter.

Thanks! Text snippets it is, then.