I've been given the same "need to have you leave the vehicle for the whole day" for what would seem to be an otherwise not unusual glitch?

4 different Ford dealers all have the same response. I've had the rig in to a single specific dealer for up to a whole half day, before being advised they were simply 'unable' to make ANY diagnostic evaluation. This is a warranty issue that no one seems willing to actual do mechanical triage.

yes, a glitchy cruise control, that seems to correlate with other minor abnormal electrical symptoms. They don't want to hear about any of it, and they don't want to plug in a code reader. They want the rig for "whole day".

Yeah, and typically an appointment for the “free oil change” at the dealership we purchased from is three or four weeks out.

Covid, ya know.

Perhaps they need a vehicle to drive to lunch every day, just to check out your complaint.

Yep, just had my ford in for a day for a recall that involved broken roof rack clips.

I once owned a Chevy Trax. A grocery cart with a small, turbocharged motor.
It was fun! And AWD too, so you could slide around in the snow.
It had a recall that required a re-flash of its computer.
All. Day. Long.
Then when I went to pick it up, they said I had to bring it back, as the download from Chevy kept stalling and timing out!
Chevrolet. Find new roads. Unless your update times out!