There has been talk of them lowering the speed limits on motorways etc. However it has been refuted this morning so it's probably going to happen. A bit like when a football manager says player X isn't for sale and 2 days later he's signed elsewhere
I don't think fuel drivers striking will help as the government will just order the Army to do it. Also if everyone starts fuel protests it hurts the economy more as people don't get into work or get in late. Look at the chaos caused recently by the snow. The economy was loosing an estimated £150m a day.
Most people will just cut back on other things as they need to get to work. There is a solution out there but blocking roads and fuel stations imho isn't the answer.