From reader and frequent photographer Matt in Denver:

Please don’t worry. I made up for their saved gas going a little out of the way on our way home from to get this picture within the LI safety standards. Unfortunately, I could not make out the BS (Bumper Sticker, or…) on the passenger side of the car.

I’m pretty sure the passenger side bumper sticker is this one, which uses a phrase not actually said by Gandhi: