I see you're getting downvoted but I don't understand why - pretty much exactly this happened to me recently, I had severely reduced mobility in my leg for about 2 months, but I was told that I don't qualify for a blue badge. So while I luckily could drive(left leg affected, automatic car), this was one time in my life where I could actually benefit from being able to 1) get closer to where I need to be 2) park close to the entrance, but because it wasn't a permanent or long term disability I couldn't get the right permit.