Just bought a TTGO 530 , and it says on the box " safety camera alerts" and when you google it , it tells you that you ave in fact pre-installed safety cameras , but how do i know?...cant find anything in the menu telling me to choose a sound alert , and when you click on the safety camer icon , it just tells you that you can join this service and they are available for download...also i've passed 3 cameras with no alert or warning , have i been conned?- thanks in advance.