Need to make a device specialized for breaking these things. An industrial vibratory device might work pretty good, especially if it had seeepable speed. Just hit the harmonic and the devices will be destroyed in a jif.
You can buy very powerful handheld green laser pointers on Amazon for around 20 bucks. You absolutely shouldn't shine one into a camera sensor, ever. It says so on the box!
I remember when speed cameras first became popular in europe. People would ride up on motorcycles, throw a tires over them and set them on fire.
I don't think vigilantes should go setting things on fire, but I also think corporate surveillance is way beyond unethical. Will we ever get a balance? Are individual rights a lost cause?