If you think some options of the trainer may not be working with the latest version of the game, use the update notification system to report that the trainer needs updating because of a patch or game update. They typically need 3 reports. Report it here:
We've had reports that certain options aren't working.
here is video showing the trainer working with no damage, no car damage, and invisible.
The fix for this problem is to toggle on the option where you are invisible, then the police do not fire on you.
The option is mostly so you can zoom around town top speed and not wreck up your car.