The only way to be 100% certain that your Jeep doesn't have a steering wheel lock , is to jack up the front end , and rotate the steering wheel 360 with the key out .
I worked at a Dodge/Jeep dealer until 07 and can't remember exactly when the lock was discontinued , running change with the chipped keys , if memory serves.
Didn't the manual have a diagram showing the key in an ignition off , column unlocked position ?
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.