Having one name (at least in common, using hyphenation) is easier for legal reasons too. If you have kids, and one parent doesn’t share a last name with them, you’ll have headaches at school, maybe crossing a border, unless you brought some extra legal documents with, etc.
From a cursory examination, it looks like there are at least some models where you can disconnect the antenna, for which you may get a warning you can just ignore. Seems a lot easier than a faraday cage. But a lot worse than a car not outfitted with that kind of tech.