I tried building a faraday cage around the antenna and was abruptly surprised when it didn't work. I hit the emergency button, saw it call the dispatcher. Hung up. Mr. Police officer came a few minutes later. Oops!
Why don't you just disconnect the antenna?
Yea. That involves finding it... but possible. I like this idea because it leaves everything else functional so, to the car, it only appears like there is temporarily no signal.
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