Only in the same way that your avatar gives your location as Poole. So hardly a big worry. Especially given that my cars are locked, alarmed and immobilised, in a garage block with locked doors, in a courtyard behind locked gates, down a private drive.
If anyone actually wanted to steal a Maser, rather than chancing across this inaccurate map, the easier option would be to drive to Chelsea (or similar location) and take one of the many left on the open streets every day/night.