What I did, when this happened to me 20-ish years ago, was to pry the doors open and shimmy through the gap. It was not easy, and I don't know how well it would

What I did, when this happened to me 20-ish years ago, was to pry the doors open and shimmy through the gap. It was not easy, and I don't know how well it would work in a newer elevator, but at the time it seemed to be purely a matter of leverage.