Drive Thru Etiquette

This morning after rushing two kids, a dog and myself out the door before the maid came, I was in desperate need of a cup of coffee. Obvious answer - Starbucks! When I pull into the parking lot the drive thru was wrapped around the building four times. I, of course, wait in it because I was that desperate for caffeine. As I am waiting in line, I notice that the three cars in front of me have no one in the car except the driver - go park your lazy butt in a space and walk inside to get your coffee and please reserve the drive-thru for people with children and pets in the car. THANK YOU!!