Since SUA occurred with the valet it proves that SUA could have occurred in all those other reported. Since there is no voltage leak orginating from inside the engine, according to the NHTSA, the only other thing that could cause this phantom leak, that I'm aware of, is Electromagnetic field induction as shown in this lab test:
I believe EM fields originating at the earths surface are inducing currents in Tesla +5v power supply that supplies power to both APP sensors. This induced current causes voltage depression which causes the APP sensors to error and register pressure when there isnt any.