My wife did that with her GP doing the same thing with a fully frozen windshield, she didn't strip anything but she did loosen the wiper arm from sitting snuggly in the grooves. Do this with the hood up and the wipers off so you can re-set the wiper arm properly. I loosened the top nut re-positioned the wiper to where I was comfortable with the setting. Make sure you mate the grooves up properly and press just enough to hold it in place and tighten the nut.

Keith