My 500 doesn't have dualogic, but I made two test drives with a 500 with dualogic. It took me only a few minutes to find out that I could easily prevent S&S stopping the engine by releasing the brake pedal on time. Only if you keep your foot on the brake pedal, and annoy the people behind you with your brake lights, S&S will stop the engine.
It can be turned off via the switch on the dashboard but regarding annoying people behind me with stop lights,I would prefer to let the person behind me be aware that I am stopped rather than having them collide with me if they are having a momentary lapse of concentration..
Brake lights are there for a reason.