As mentioned, I never lock the doors. The top is too expensive, so hopefully they'll check the handle instead. If I'm parking for more than an hour is I leave the center console lid up, glove compartment open, and partially unzip the windows so it is obvious they are open. I figure that if a thief sees that the console is already open, then they'll figure there probably isn't anything of value left in it and move on.
Last thing I do, I keep a handful of spare change in the cup holder. If it's missing, then I know someone's been in the Jeep and I know to check if anything else has been messed with. It's only turned up missing once when I parked in Buckhead years ago.
God help the sucker if I ever catch a thief in my Jeep!