My name is Barry Reitman. I'm the author of "Secrets, Tips and Tricks of a Powerful Memory," and I'm answering the question now how to remember where you parked. And given the size of shopping malls and other situations, it's a common question.
Here's the answer: Most large parking lots have signs. Look up on the top of the lamppost and you'll see A4, B3, what have you. Make those numbers into a picture related to your car. If you are in section A4; A, apple, 4 - well let's use a simple rhyming scheme - one, two, buckle my shoe. Three, four, close the door. Apple, door. I'm going to take a giant apple in my mind, put it by my open car door, and smash the car door into it. The apple is going to spray juicy, ugly bits of apple all over the inside and outside of my car. Apple, door, A4.
When I'm ready to leave that shopping mall, where's my car? I'm going to see that. I'm going to see that picture. I use this all the time. Obviously, if there aren't signs with those markers such as A4, and B3, or whatever else, maybe you're near a certain store. Just picture yourself driving through the display window of that store. Pick some silly, stupid, manufactured picture. See the picture for a moment: Don't just say the words. And I guarantee you, you will find your way back to your car.