Next Friday, I'm going on a 3 day road trip to Spain, and then will stay there for 3 weeks. I will come back in the first week of January.
The problem is that because of the Gilets Jaunes, France is currently in a bit of a mess, to put it mildly: there are frequent riots and blockades, many gas stations have run out of fuel and a number of locations have seen arson and even deaths. It doesn't seem like it's going to stop in the next week, and I've even heard rumours on social media that this might be the start of a new revolution, similar to what happened 50 years ago.
The plan right now is to stay the night somewhere in the middle of France (I think near Poitiers), then drive to Zaragosa via San Sebastian and spend the night and part of the next day there and then drive from there to the Costa Blanca, the end destination of the trip. The trip back would be a 2 day trip on Friday and Saturday with a stay in France, probably in Poitier again.
I'm somewhat concerned about the situation and really want to avoid problems on the trip. I don't want to end up on the side of the road without fuel, I don't want to have to spend the night in a car and I DEFINITELY do not want to end up getting caught in the middle of a riot or worse. Postponing the trip is not an option and we really want to go with a car and not a plane or train.
What things should I be aware of to make the trip go smoothly? Note: I won't be visiting Paris on this trip, so the suggested duplicate isn't quite valid. I will spend most of my time in France on the motorways and the roadside rest stops.