Well I imagine you would unwrap the sandwich and have it prepped for eating before pulling away from the place where the sandwich was purchased… And you don’t need a different surface, you just keep the paper it was wrapped in on your lap, and put it on that.

Do all of y’all really need to look down at your sandwich while eating it?

Obviously, it’s more distracting than sipping coffee, but I would argue that sandwiches are one of the better driving foods. Far better than anything involving a utensil.