[nemonemo]

Does emergencies make speeding legal for usual cars? I could imagine police cars or ambulances could be exempt from the rule. Also, adjusting the insurance cost based on the speed limiter seems a balanced policy to me regardless of those freeways.

[tharkun__]

Why imagine? Police cars, ambulances and fire engines already are exempt from speed limits. But only if they actually are rushing to an emergency with lights and horns on. They are also allowed to go through red traffic lights.

Except at night to not wake you up they might not have the horn blaring then. But they also understand how much faster to go, when to have the horn enabled even at night, know to approach a red light slowly even if they have right of way and you are supposed to let them pass etc.