In the event it's of any interest, I bought this little plastic box at walmart for less than 3 bucks. I keep my Rugged Spot in it.
Drilled a few holes in it for venting. The holes (not visible in the pic) were strategically placed to lessen the likelihood of harming the contents from a drink spill.
I keep ac/dc adapters inside the box, so I can quickly power it in my vehicle or in a hotel room, home, etc. When not using it, I just wrap the power cord around the box and hold it on with a rubber band. Completely portable, and protects the Rugged Spot. You can simply lay it in the seat, back seat, floorboard, wherever. Plug it in, it will see your hotspot and you're up and running. I wouldn't want to hard mount it because it would reduce my options on using it.
Good luck.