Somebody has to explain to these kids that you can't win the race in the first lap, but you can certainly lose it.
I think he wanted to give his home crowd a bit of a show. Which he did (and arguably and then some). At least half of them anyway. The other half got a glimpse of him waving from the car on his ride back to the pit lane.
Again, I'm a bit biased being a kiwi. Word is Hartley is under pressure to keep his seat and getting caught up twice in 2 races isn't doing him any favours. I just want to see him hang on to his seat as long as possible because I think he's struggling to change his mindset from WEC to F1. He'd keep his job as a test driver at the very least because of the great feedback he gives when his car is off.