Think it was probably just a car safety feature that wasn't switched off. Has happened before with race organiser cars as well. Visma being "dirty" has been extremely overstated. I honestly didn't see anything at the Tour, that was completely unfair. even the squabbles at feeding zones seemed more like in the heat of battle issues between competitors. That was also Jorgenson who seems a very likeable person and not cut-throat in any way.
Regarding Vingegaard, with him going to the Vuelta, general sentiment seems to be that Vuelta + WC in Ruanda isn't properly doable. The travel being too stressful etc. At least that was the criticism a few months ago regarding many riders possibly not showing up for worlds.