It looks like you CAN survive a blizzard on only hot sauce packets (although I would highly recommend stocking up on protein bars for emergencies as well).
An Oregon man got stuck in his SUV during a historic blizzard for FIVE DAYS! He was stuck with his dog and couldn't get anywhere.
That's where 36-Year-Old Jeremy Taylor turned to his glovebox and finding the leftover Taco Bell hot sauce packets from a day in the Drive-Thru. He tried to escape but the snow was too much to handle, with areas getting up to 20 inches at the time.
Luckily, authorities found him and the dog after a few days using a snowcat vehicle to find them. They were fine, just super hungry.