Did you get any time @ Hotel Arbor? IIRC when I drove down Hunaudieres there are catch fences all around that area?
Managed to spend a bit of time trackside (well, behind the armco, unlike the guy @ Arnage!) between Mulsanne & Indianapolis around 2am Sunday. Awesome experience - amazing how much action there is going into the dip then right bend. Can realise why some French folk had a protest banner up on the fence "give us back our Indianapolis". The cars are travelling so fast could only identify from engine notes and rear lights (looking at headlights is counter-productive!) Plenty of marshalls about - needed a fair amount of stealth and figure impossible in daylight - for sure near the chicanes is probably preferable for photography as the cars are slower.