I’m wondering if going back to using a pager would be of any use to avoid the tracking.
Even a pager, using any power , is looking for a signal
The only way to incapacitate any signal looking device is : to remove the battery !
Remember when the Press would fly on Air Force One .. the first thing upon entering was surrender of all cell phones, and battery removed .
With the battery still in the device , it still searches for a signal, even when turned off .