Review on ACDelco 94568533 Original Equipment Interlock by Ralph Gerry

TL;DR: This part worked. I can pull out of the parking lot and pull the key out of my 2006 Aveo. The "Can't get out of parking lot, key can't be removed" issue appeared on my 2006 Aveo a few days ago when I wasn't home. Swelling. A little tip for the next victim: removing the 10A fuse in the radio will disable the lock in the steering column that prevents the key from being removed. You still have to stick a flat object in the parking lock and you don't have a radio or clock on your dash. Anyway, after a few hours of fighting I was able to replace the switch/solenoid assembly myself and it now works perfectly. At least it's a relief to get rid of this bad luck.