Battery Shutoff switch location question

I was under the impression it had to be VISIBLE, meaning the bumper, etc. "If I ever" get mine back on the road, I intend to mount it in the trunk, with and outer sleeve/ inner rod "push" setup for theft. Open the trunk to engage the switch, the knob will protrude out the rear, and push it to kill the switch. Pulling it out will not re-engage the switch, rather just slip the tubing on the rod