Sorry for your loss and damage.
Sometimes, you need to think like a thief in order to not be a victim. Dark is a burglar's friend. So is a target that can't be seen by people randomly going in and out of a public building like a restaurant or a store. Same with a rest area if somebody can see you lock it up and walk away.
I like CB, but I go in the toad, after I'm set up in an RV park. In a rest area, I use my own facilities inside the MH and if I step outside, I stretch my legs by walking around the rig, looking at the tires, cleaning the windshield and mirrors, etc. but always close to the rig.
In general, make your rig a less attractive target than somebody else's.