You just cut out the windshield with a piano wire. I have used carpet knifes before also. They are not that tough to get out without breaking once you know how.

Go to pick and pull with a carpet knife and a bunch of extra blades. If you can find a piano wire it will make it a lot easier. Plan on a couple hours to get it out for your first one.

I would use a used one if I found a nice one.