> Who is "we"? Vehicles and pedestrians mixing is something that predates recorded history.

The collective "we."

> Neither the radar gun, not the speedometer on a car are accurate enough for that.

You have a radar gun. You clock a car. The gun says 30mph. You clock the next car. The gun says 31mph. In the latter case you write a ticket.

You're free to argue the vagaries of measurement systems in court. Good luck.

> You're free to argue the vagaries of measurement systems in court. Good luck.

Won't need much luck, the first time this shows up in court it will be thrown out and officers told to stop writing false tickets.

There's a reason cops don't ticket anything less than 10mpg over - the tools they use are not just that accurate. It's a fake number.

> You're free to argue the vagaries of measurement systems in court

This is incredibly common [1].

[1] https://www.findlaw.com/traffic/traffic-stops/can-i-challeng...