Any type of eavesdroppi g would have to be done via tge post, which to this day has better confidentiality guarantees because USPS is one of the only service providers to which Third Party Doctrine does not apply for auto-negating expectations of privacy.

if you were investigated, it would have to be by a local law enforcement official. There was no cross-referencing of biometrics, fingerprints, or driver's licenses across state lines.

There were no license plates to track. When they were eventuallu implemented, it would be decades before data stores were implemented that allowed real-time tracking via ALPR.

It was, in fact, not a given or even remotely a given that it was considered technically possible to localize or pin down an individual without one or more individuals being engaged in the act of tailing.

There is no question that at the timeof the signing of the Constitution, the world had a much higher degree of privacy by default.