If you're talking about United States v. Antoine Jones, the result the Court reached is not what you describe. The Court ruled that a warrant is required to ins

If you're talking about United States v. Antoine Jones, the result the Court reached is not what you describe. The Court ruled that a warrant is required to install a GPS device on a car because the act of installing the device is a seizure (however brief). Unfortunately Kennedy hid behind this narrow ruling; no finding was made on the broader issues of the 4th Amendment and electronic surveillance.