Alternator/generator/regulator problems of the 2012 Chevrolet Corvette

I was in my garage, I opened the driver door sat down and secured the seat belt. I attempted to start the car by stepping on the brake pedal and pressing the start button but the engine did not turn over. I made a second and third attempt to start the engine to no avail. Then, I attempted to exit the car but the door would not open. Having not opened the windows, I was lost as how to get out of my car. I made one more attempt to start the engine but could not. In fact my instruments were dead. As I was without my cell phone, I sat perplexed at my predicament for several minutes. I operated the drive window down button but nothing happen. After a few minutes I tried the driver door window again and the window opened about � inch. I repeated the process for 10 or so minutes until the driver side window was completely down. At this juncture, I was able to climb out of the driver's window to safety. I then reached into the car and was able to release the car's hood. I did not find any visible lose connection. The battery connections were corroded. I clean the post terminals and the cable clams. Having done so I attempted to enter the car but the doors would not open. I have purchased a new ac delco battery and all is well. My issues are 1. I had no indication prior to the event that my Corvette instruments gave me no indication of a battery failure or any alternator failures. 2. I had no passenger compartment access to the inside trunk release strap for drivers door. 3. I believe this is a safety issue even if it is a rare event. Thank you for your attention to this matter.