How to secure a curved monitor

I have this hunk of a 32inch curved monitor i'm moving in my trunk. I got a ton of microfiber rags i'm gonna tape to cover the screen, take the stand off, and set it face down on this 3 inch thick foam pad on top of my folded down seats (not perfectly flat). How can I get it to stay on the pad and not slide off or have the pad move around either?