[mad=dog]

Sorry Bungleau, but the choice was really limited to pit the cars - otherwise they would have raced. They clearly expressed that they did not care for placement.
1) Go slower. Slow cars on the track is a quite dangerous thing. Especially since they must go slower AND take a suboptimal lane in a hard turn crossing the ideal curve twice.
2) Take the penalty. The penalty is black flag. Better to remain in pit. If the penalty had been anything else they would have raced. There were still points to race for even if Ferrari had a 40 second lead from a first lap stop-and-go. Heck with Ferraris season so far I doubt they would have won.
3) Change tires more often. How often? Even with onboard pressure analyser it's a guessing game. *Turns head at Michelin*. Nope. No information on how many rounds the tires can stand.

Leaving one: Remain in pit.

And yes it is tough luck for Michelin teams and they didn't try to hide that fact. Otherwise they wouldn't have offered to race without classification.

Of course they could have raced and purposely knocked the six Brigdestone cars off track. That would have been the smart choice. But that is not true sportsmanship.