As the former Fire Chief, and now the Assistant Director of Disaster Services for the Village of Seba Beach, I can state that this system works.
Using all the components of the system including the smoke, strobe, and high volume noise, it works to disorient potential thieves or robbers the same way that police flash bangs do when they breach buildings.
These systems have also been in use on luxury yachts for years, with tremendous results. It is about time someone has had the foresight to bring these systems onto dry land to keep shops and shopkeepers safe.