We have the same problem where I live in the US. When I get some free time I'm going to lobby our state congress to have the sale of them banned, because it's the only way to get people to stop installing them. There is a law against driving them but it's impossible to enforce because there's no means of measuring the sound and associating it with the vehicle quickly enough to enforce it.
I'd love to have an ALPR system that localizes the noise and snaps a picture of the plate and vehicle and sends them a ticket in the mail.
I'd love to have an ALPR system that localizes the noise and snaps a picture of the plate and vehicle and sends them a ticket in the mail.