Gosh, the lure of the open road is just so strong for some dogs. Do you have a doorbell, is there some warning the door is going to be opened? Perhaps training her that when she hears that noise, if she runs to the kitchen and sits pretty she gets a treat? This would require a two-person training effort (one to be outside ringing doorbell, or knocking , one to be inside hollering "Just a minute," and administering treat away from the door ...

How often does someone come to the front door? Perhaps a small printed note taped to the door, warning of a small K9 SKP (canine escapee) on the other side will help?