Can a voluntary car interlock breathalyzer be reset so that you don't have to blow while driving?

Can a voluntary (not court ordered) car interlock breathalyzer be reset so that you don't have to blow while driving, only when starting the car? And where can I get one installed in Arizona? There are lots of places for the court ordered testers that cannot be adjusted, but I need one that can be adjusted. This is for a recovering alcoholic that wants to avoid any mishaps in case of a setback and impaired judgement. Any help would be greatly appreciated!