Research shows that wearing your mask, and opening the front passenger window, and the window behind the driver seat helps to reduce the spread of the novel coronavirus in your vehicle. See this NY Times article.
I work on Naval Air Station North Island(Coronado). For those in the military, I am on shore duty and my normal(non-covid) work schedule is: Mon-Fri 08:30 to 16:00. There will be days where I will be traveling out of san diego because of work but I will let you know well in advane.