Rubbermaid Wall Mounted Storage Cabinet with Doors 150-Pound Capacity Gray Lockable Three-Shelf Cubbard for Tools/Car Accessories/Cleaning in Home/Garage/Outdoor Areas

Your local woodworker could probably build something. Think like those little free libraries/pantries - a basic box with a locking door is not too complicated. Or cut a hole in the back of something like this - https://www.amazon.com/Rubbermaid-150-Pound-Capacity-Three-Shelf-Accessories/dp/B002RN2RFY - and install it around the EVSE.