Tesla also told me to remove any USB drives when we were trying to recover the screen. Mine in also a 2013 P85 (VIN 11781). 145k on mine. The screens had been acting up a bit over the past few weeks, but a scroll wheel reset had always corrected the issue. Like you, it finally just completely died, except mine was the opposite in that the AC was off and I couldn't turn it on, even from my phone. At least I have a Model S loaner while waiting for the part to come in. What Service Center in FL do you use?