I have a personal experience with the harm that ubiquitous recording of location data can bring, even when you don't do anything wrong. When I was in college, I was called to the police station and accused of breaking a glass door in the dorms. I knew NOTHING about this. I told the police I knew nothing about the event, but they continued to press me. They asked me details about where I was that night (many weeks pri…
At the point when they started asking about stuff you didn't know about I would have invoked my right to a lawyer.
Telling the police to direct further inquiries to an attorney doesn't actually necessitate retaining one until they make additional inquiries.
One way to view this is upping the ante. You've made clear that you know your rights, and that they're not going to be able to use you as an easy source.
Of course, if they call your bluff, it's helpful to be able to produce said attorney.