So they nuke it with a microwave?

I wouldn't be too concerned with wedging the door, doors have lots of flex and it will spring back. Even if the door yields you can just bend it back the other way. I would no expect it to be bent more than 1/4" once it is all over if at all.

Breaking glass is a mess, you will be for ever getting stick with fine shards.

Now, you could remove the rear glass if it is gasketed.