I have the sticker on the front windscreen and on the driver side window but that did not stop them to try to unlock the car, I am not sure if Ghost 2 immobiliser is affective but they did not had chance to test it.
For the battery disconnect method I used, it’s personal choice that works for me but anyone want to use it, it’s their responsibility to test and use it.
One thing to mention here !!
I been parking my car on the same spot for over a year never had issue.
On the night before the incident my next door neighbour had issue on his car and RAC they sent a company they use for the service and my neighbour informed me he was looking at my car, next day the incident happen so I suspect him sending car location to someone.