No but the text message from the AMA has the question "When are you leaving?" timestamped at 9:18 AM
Then there is no reply until 10:46 AM with a reply back about the ETA being 12:35.
That is a fairly large gap. Don't know if there are text messages between that time that were deleted or why it took an hour and 28 minutes to reply. Or maybe there was a verbal phone conversation between the two timestamps.
Also the press conference referred to the drop off location of the parcel as a 'kiosk.' I don't know what that means and whether that implies a retail store or a drop box only. In one of the press conferences as well the police representative from Pleasanton Lt. Erik Silacci discusses working on firming up the timeline and asks the public to come forward if they saw Philip in the morning parked or driving one to two hours before the incident or sometime that morning. This request is about at minute 21:18 of the press conference that KTVU posted on Youtube-
Because of that request for the public to come forward, in my opinion, it is possible that they cannot yet confirm that Philip was actually the one driving the vehicle that was found parked at the trailhead.