In the privacy community there are services, programs for private maps use. Some even suggest using the phone without a SIM card (which is quite possible, but you can get into trouble). But I don't use them, as my geolocation is already tracked by an advanced camera system in my city, by my cell provider via triangulation. What are your thoughts on this? Do you use OpenStreetMap for private navigation?
You could have also referenced the abortion issue, where it's been proven without a shadow of a doubt that police are using surveillance powers to monitor women who are suspected of being pregnant and trying to terminate the pregnancy. It's literally already happening in one instance, which helps prove that you're very right in being worried about the things you're worried about. Because those things will surely come to pass as well.