to inhibit the system you can pull the fuse, or
disonnect the pump under the spare tire.
The mercury switches are inside the height sensor screwed to the bottom of the car, near the sway bar.
the electrical plug for the switch is under the back seat on the driver side. you can unplug that and disable the system too.. that is only one screw and easier than emptying the trunk.
I doubt the thing is adjusting when you are driving.. the switch looks reliable inside. I had mine apart just 2 weeks ago.