If it is expired they will still most likely let you use it with just a warning, but if you don't have anything I wouldn't even try.
They will in most situations turn u away
If you go to there office you will need some kind of ID. I usually just call them to get SEPTA passes. They don't require any ID through the phone. They just want to know when and where your appointment is.
Thanks! Your answer is awaiting moderation.