I'd like to hear from an ATCer on this.
Me too.
The old SARTIME for D has to be cancelled and a new SARTIME set up for Q by ATC.
Does ATC do that, as a matter of course for VFR flights?
Perhaps the new route should be ‘set up’ somewhere as well?
(It's all on the tape if he does not show at F).
You probably meant ‘Q’ rather than ‘F’, but in any event reliance on ‘the tape’ is cold comfort for WW who’s crashed between F and Q.