Supreme Court Rules that Warrant is Necessary for GPS Tracking Surveillance

So, before the Feds decide to track everywhere you and your vehicle go with a GPS tracking device thrown up under your bumper, they have to get a warrant.  So, then the Feds show up, knock on your door, and show you the warrant saying they can install a GPS tracking device on your car.  Should be a tip-off that they are on to you, don’t you think?