The Phaser does NOT work. Car and Driver tested it years ago...it's garbage. As said before, active jammers are illegal due to FCC regulations. However, you can LEGALLY jam LIDAR since it's optical and not regulated by the FCC.
How do you jam LIDAR (laser)? I've looked into it...a lot....lmao. What you need is an extremely bright light source, off road lights would work pretty well. Then you can buy from most any military surplus store, IR light covers. The military put these over their lights for night time ops...they will only allow infra-red light to pass. All visible light is blocked. This will render ANY laser unit completely inoperable until you drive by.
Since the vast majority of law enforcement is now using LIDAR, this is probably the best setup one could use.