its not really proof is what u dont understand ... audio sound is not proof on the basis that some people have their volume low .. hell i play with the "earplugs" on most of the time which is 20% volume ..and again since sirens are bugged while it sucks for civs its not the cops fault and lets be honest texting a criminal may work for you as a fix but not for most cops who are typically driving and if they stop to local your name in the phone then type it up and send it , your likely to just run or drive away claiming u didnt get the text in time to properly stop and cooperate
i do feel your pain but u cant go around reporting cops doing proper RP just cuz there is a bug