A mighty fine specimen you
had there seth.
They are useful predators, feeding on other insects and spiders. Although fierce looking, Jerusalem Crickets are harmless, but their powerful mandibles could inflict a minor, non-venomous wound if handled carelessly. Genus Stenopelmatus - Jerusalem Cricket - BugGuide.Net
I would keep a wary eye out for any more as crickets in the house is not good.
Check for any obvious openings around the perimeter of your house, and caulk them.
As for prevention, any boric acid based product should do okay like ones for Cockroaches, Palmetto Bugs, Waterbugs, Ants, Silverfish, but use hand, eye, and breathing protection the dust can irritate mucus membranes.
Apply with a hand bulb duster.
Please offer my sympathies to your Dear Wife, mine would of had the same reaction!