Was the advance team infiltrated or something and not trustworthy?
If my theory is right, the press pool driver was part of the (Resistance) Q that posts pics only an insider could, like a WH photographer or a member of the advance security team. Q posting that palm frond captioned ‘just waiting’ that could easily be traced to the Broward Hospital where CINC was going to see survivors would result in the firing of the whole team, right before a 3 day weekend when shuffling security staff would be difficult right before the press pool driver getting a weapon inside MarALago on President’s day.