Is he sinning if he goes against the traffic rules?
Question

Is a person sinning if he goes against the least important traffic rules, such as going slightly over the speed limit, not using his signals (indicators), not exiting the lane in the correct manner, or not leaving enough space between his car and the car in front? Is it important to comply fully with these rules, or does the least infraction incur sin because he is not obeying those who are in authority?
Praise be to Allah.Everything that could cause harm to a Muslim or the Muslims is forbidden according to Islamic teachings. If the traffic rules help to protect against harm, then they must be followed.
And Allah knows best.