>this new system uses a strategically placed sound meter to record decibel levels on the road, matching it to a license plate using a camera.

Are there more details as to how this works and how it prevents false positives? Would the rumble or crack of thunder and lightning trigger a microphone to incorrectly mark a vehicle as loud? Or are there algorithms processing the recorded sound beyond just pure dB/volume to determine if it's actually a muffler?