SIRENS, THE BANE OF 21ST CENTURY!

Ten years ago whenever I visited my son in Chicago, I was deeply perturbed by the incessant wailing of sirens both during daytime and nighttime. I used to think how lucky we were in Malaysia where we could get by every 24 hours without hearing the highly disturbing siren screaming like a tormented banshee! This is no longer true today. Like the banshee we are tormented by the ear-piercing screaming of sirens both in the daytime as well as at night. Sometimes I wonder whether the ambulances or policecars charging down the road in the wake of their ear-piercing sirens really need to be in such haste and for whatever reason.
If you live on one side of a narrow road and an ambulance or a policecar comes screeching down the road with its siren switched on at its ear-piercing loudest, the reverberations of the high-pitch siren bouncing off the buildings will give you a headache long after the vehicle has gone past.
If you have been caught in a three-lane bumper-to-bumper traffic, sandwiched on either side by other vehicles and an ambulance or a policecar comes charging up behind you with its siren screaming in ear-piercing decibels, you can pee in your pants, and when there is no way in which you can move to the side for the ambulance or the policecar to pass you and the incessant siren keeps screaming as though in admonishment of your failure to give way, you feel like getting out of the car and walking off, leaving it in the middle of the road!
Isn't there a law that forbids ambulance or police sirens to be used above certain decibels? Shouldn't ambulance and policecar drivers be warned not to use their sirens indiscriminately? Why are our cities beginning to sound like Chicago?