Staying in the vehicle during a winter storm is generally the best course of action for several reasons. Firstly, a vehicle can provide shelter from the elements, protecting you from extreme cold, wind, and snow. Abandoning the vehicle can leave you exposed to harsh weather conditions, increasing the risk of hypothermia or frostbite.
Additionally, a vehicle is often easier to spot from the air or by passing rescue teams compared to an individual searching on foot. It is also typically safer to remain inside, as it minimizes the risk of getting lost or disoriented in poor visibility conditions that can occur during winter storms.
Keeping the engine running can be beneficial if proper precautions are taken (like ensuring the exhaust pipe is clear of snow) to prevent carbon monoxide buildup and to provide warmth. However, the priority is to stay in the vehicle, as it provides a controlled environment while waiting for assistance.