Sorry, but I don't agree with that analogy!
Speed limits... it's not a case of us wanting to drive at 50mph when the speed limit is 30mph... it's almost the opposite – it's more a case of the speed limit being 50mph, but UEFA are restricting us to travel at 30mph... legally we are, and should be, allowed to travel at 50mph if we want!
The offside rule is a rule – a rule of a game that has to be abided by for anybody participating in said game... FFP is a law imposed by UEFA, which has to abide by external laws... for example, in the past there have been rules saying black people couldn't sit on certain seats of buses, or women were not allowed in certain parts of clubs etc. – these 'rules' have since been rightly abolished because they are illegal – as is restricting a businesses trade. Organisations can set any rule they like, but it has to abide by law... look at the outcome of the Bosman trial.