Brake Light problems of the 2012 Chrysler 300

After being parked in shade for over an hour on warm (70) day, brake light came on, then engine and transmission light on and off while driving. While at stop, smell of burnt plastic and unable to shift from drive to park; was eventually able to shift into park, then vehicle died, including flashers. No power to anything, including doors. Was stopped at head of left turn lane during lunch hour traffic; out of car due to building heat and increased burning plastic smell and to direct traffic around the vehicle for over an hour until towed by aaa. Diagnosed by dealer (lithia Dodge in santa rosa, CA) as wire shorted in alternator, but they say not covered by recall #14v634000. Quoted repair is $1452. 00 for new alternator and battery, plus approx. $500 in car rental costs. Mileage about 58,000.