So my dad was too scared to drive the Model S P100D loaner, and in any case I used it to drive us back to my parents home and then we actually took it out since I don't have to work this week. I mean - they just needed someone to provide a driver license, and they were fine with me. Later my dad was OK with me taking it home since he didn't particularly want to drive it. However, his impression of it was that it was "heavy" just from sitting in the front seat.
It was a very different experience with the instrument display and more traditional controls for steering wheel position, mirrors, etc. I also tried putting it in Ludicrous mode, although I was scared off with Ludicrous+. It actually behaved quite well in Ludicrous mode, but I did try a few jackrabbit spurts to see what it could do, but up to about the speed limit.
And we saw how they fixed my parents' Model 3. Looks like someone just took some sandpaper and ground down the splotch of paint. Didn't look particularly good - and frankly worse that with the bumps. It looked rough and not even like it was polished out, plus some of the paint was ground down to the metal. My mom wouldn't have any of it and insisted that they fix it for a new car and they were referred to a nearby body shop that they'd pay for. But that's going to take some time to get an appointment and might take a few days. Not sure, but I'd think they might also have another loaner if it's going to be a few days, but they'll have to see.