Turn off the tracking, although they can trace a phones movements between "cells".
When using maps you`re fooked. Especially with recorded speeds.
Easy way to see if tracking is turned off is to download "Trace my phone" or similar and then try and find it.
It is amazing how close it can get you to your location.
Had trackers on vans when I managed ( Why I hate them , now you know why! ) Clever fookers decided to leave vans on site and wander off, shame I had the company phones tracked too. McDonald seemed the fave location of certain staff members !!!
Damn another secret out!