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 have to be in LA anytime before Sunday Aug 15 with my dog.
I have an 8 years old German shepherd dog and she is so lovely, friendly and and calm, just seats in the back and never disturbs or doing crazy! I am sure you will love her too :)