unlock your iPhone driving hands-free

So we live in a world where driving hands-free is a law across most states works well with answering phone calls making phone calls even sending iMessages or text messages however when you receive an iMessage or text message Siri ask you to unlock your iPhone first well I am supposed to be driving hands-free I cannot be looking over and tapping in a passcode are trying to get my face light up why has an Apple made this easier Siri is the voice recognition so it’s not like everyone can unlock my iPhone this needs to be fixed following the law

​[Re-Titled by Host]