I'm almost certain he did.
You can use it passing back markers and he definitely passed Kimi on the main straight using it. Granted, probably only used it a handful of times but still.
I wouldn't be overly critical of the team not telling Alonso not to use DRS after this first stop. I think hindsight is a wonderful thing with regard to what Gary Anderson is saying.
Fairly encouraging weekend though despite everything that went wrong for both cars.
I respectfully disagree both in this case and the Malaysia incident. To my mind at least, it was a bit of a 'no-brainer', they needed to tell him not to use DRS. It is a simple common sense approach.
Why? Well, this was not a simple case of the DRS failing to close (through say rubber debris obstruction), it was an over rotation of the flap as was obvious from the footage. As I understand flap passed the stoppers (which normally prevent such an occurrence) and the same stoppers prevented the wing from being pushed back down by the force of the airflow - from seeing the footage Ferrari should have know that the flap had passed the stoppers, after all they design the car.
This means, for whatever reason, that the stoppers have failed in their primary purpose, and without understanding the reasons/cause for their failure the consequence of which is that that you cannot have any confidence that it wont happen again. Once Ferrari were aware of the issue they knew then that they were going to be in damage limitation mode yet willfully exposed themselves to an unnecessary risk that inflicted yet more damage. Ferrari seemed more to be the land of hope rather than the real world on this one.
The same goes for Malaysia, that was not a simple front wing endplate/endfence failure which could have easily been managed, this was a failure of the structural support of the wing - again a 'no-brainer', call him in, change the wing & carry on.