What "civil liberty" ?
Ther eis NO civil liberty that permits the law to be broken.
So the speed limit is there.
To break it means you LOSE your civil liberties as determiend by law all the way back to the Magna Carta, even the Queen is limited
If you make every attempt, then it won't limit your liberties at all ... it will never switch on for you !
The only ones who it limits are those who try to break the law.
Are you saying that law-breakers should retain ALL of their civil liberties -- ie freedom, money etc etc no fines ? no points ? no prison ? no consequences ??