This issue was brought up earlier, in late February I think. It happens to bikers too.
One of the solution was to stick a fridge magnet under the car. Sometimes, was it said, stopping the car further back, like at the beginning of the embedded loop, did trigger it.
A long term remedy is to inform the local traffic signal authority (maintenance) to fine-tune the sensitivity of the detector.
Over here, traffic lights are the power utility company's responsibility.
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