Air Conditioner problems of the 2015 Mazda MAZDA3

The car had a catastrophic electrical failure, Mazda is unable to diagnose the cause. I have asked Mazda and the dealer by phone, email, and postal mail what I should do if this occurs on the highway. I have gotten no response from Mazda. I am concerned that this is a safety issue. While driving the car on a city street, during the day of 8/11/16,all the indicator lights flashed on and the air conditioner stopped. The engine was still running. I pulled in to a parking lot and turned off the engine. I tried to start it again (push button) and nothing happened; no lights, no sounds. I waited several minutes and tried to start the car again. This time it started. I turned it off and tried to start it again, nothing happened. I called Mazda roadside assistance and had the car towed to a dealer. On 8/20/16 the dealer told me they were unable to diagnose the problem. It seemed that more than 60 error codes had gone on a once, but they could not find a cause. I have emailed and written to Mazda asking if it is safe to drive the car on the highway, asking if it were to happen again would the and what I should do if it happens. More than a month has passed and I have had no response from Mazda.