This actually worked!

I borrowed my sons Dodge Ram 1500 truck to move some things.  I picked up the truck and  loaded it in about 20-30 minutes.  There was no problem starting the truck when I picked it up and my son said he had not been having any problems with the ignition switch.  But, when I tried to turn the key to start the vehicle, it was locked and I could not turn the key.  I looked on line for some help.  On the net, solutions ranged from trying a different key, spaying carb cleaner or WD40 into the switch and finally replacing the switch.  Needless to say I was not going to pull the steering column and attempt to change the switch.  First, I tried the WD40 and a different key.  Neither of these worked.

I went back on line to search for other solutions.  Luckily I found the video below on youtube.  I used the palm of my hand instead of a rubber mallet.