Personally I wouldn't do the x-ray. There is nothing to be done if one is cracked or broken, kind of like in people. I would just take it easy and observe the snake before doing extended handling. I bet the snake is completely fine though. Think about how snakes compress and stretcth their bodies to squeeze into things and how they eat.
A few years back we got the call a family member was in the hospital so we left in a hurry. I topped off waters because we would be gone a few days. My big Blood had a corner left unlocked on her cage in my haste and she squeezed out. She had to fall at least 3 to 4 feet getting out. She was fine. The good thing about her getting out is she's fairly easy to find. Found her in the guest room under the bed in a wrapping paper tote.