Dear old man in the Stop and Shop parking lot,
While I applaud your sense of personal grooming - a habit that we all should pay attention to - I do not think your car is the best place to be violently pulling at your ear hair in the hopes that it will come out. Firstly, because that works much better with a handy little device called a tweezer (seriously, they are not that expensive). And secondly, unless you are in the back of a limo or have those fancy tinted windows, EVERYONE CAN SEE YOU!
What is it about being in your car that makes people think they cannot be seen by other people? I myself, have occasionally fallen into this trap. Except I know I do it and don't really care. In fact, I kind of like the idea of someone having a little laugh at my air-guitaring expense if it means I've brightened their day a bit.
But I can tell you this - watching someone pull at their ear hair really did not brighten my day.