2022 Mazda MX-5 Miata Driver Assist & ADAS Problems

On two occasions the vehicle (which is silver--more about that below) has suddenly and without warning activated its emergency braking. The most recent occasion was summer of 2023. On a clear, dry afternoon the system activated while I was at speed on the Suncoast parkway approaching an automatic toll arch. Fortunately there were no other vehicles nearby. I pulled to the side of the road and turned the car off and on again to attempt to clear whatever glitch had happened. The incident was so dramatic I've actually forgotten what the prior incident was. I remember one reason that was mentioned in the manual was a dirty windshield, and that was not the case at that time. I have *never* experienced a justified engagement of the system despite driving in heavy traffic for more than half an hour twice each weekday. I was put in mind of the incident by a recent recall of Genesis G90 sedans painted silver, like my car. Apparently the paint reflected radar and set off the emergency braking system. I surmise there may have been some radar-emitting device in use temporarily on or around the toll arch.