The screw holding the French Cleat to the wall stud failed and the cabinet fell.
It looks worse than I expect it is from my preliminary inspection. The drill press table is not damaged, just the base support turned. Best I can tell the stuff on the floor did not break nor were any of the chisels in the rack under the cabinet damaged.
The biggest problem will be getting the cabinet down from where it is without causing more damage. For now I'll wait for MsBubba to awake and have her morning tea before doing anything. Maybe between the two of us we can get that sucker out of there with minimum damage to person or stuff.