Here's a quick primer on how "smart" intersection detectors work. The 'Pavement Invasive Detectors' are typically installed during construction or repaving, but can be retroactively installed also. It simply comes down to the road owner determining if one of these systems are worth the extra cost, so contacting them would be the first thing to do to get it changed.
Traffic Control Systems Handbook: Chapter 6 Detectors - FHWA Office of Operations