My idea to help curb road rage and improve driver behaviour.

A small LED strip mounted inside rear window of the car.
It would be Bluetooth-linked to a panel that could be mounted on the console with buttons that trigger brief flashing messages on the LED screen.
- THANKYOU!
- APOLOGIES!
- THANKS FOR LETTING ME IN.
- etc etc.
Obviously this idea could be subverted to generate negative messaging…but that would just be a dick move.
Giving positive feedback on the road. It’s a simple thing that could make a difference.
Does such a device already exist? Could someone build it for me?

What say you? Please leave a comment!