Yes, you can put the socks in the trunk.that is also a great idea. Just make sure you turn them inside out when taking them off, this way should the socks fall out of a bag, or box the inside of the socks will touch a surface.
I want to add what I did at the gas station the other day. I took my can of Lysol and sprayed the gas pump handle, then I know it takes a few minutes to become “safe” to handle.
I put a clean pair of socks on my hands, then pumped the gas. This way you have an added layer of protection.
Next after careful removal of socks, I went to the grocery store, putting another fresh pair of socks on my hands.
Until this awful cov19 is under control, or better yet GONE the world population must do what is necessary to protect themselves.
PLEASE REMEMBER TO WASH YOUR HANDS OFTEN.