Haha! Wife did the same many years ago as we were leaving the mall- except it was an Accord and the cars were parked side-by-side. She walks up and gets in while I’m fiddling with the keys. I unlock my car, get in and go to start. I look over to my right and there she is sitting in the car next to me. I almost panicked until the car started. Then I honk the horn and she looks over. The look on her face! Priceless!!