Honestly I think most have overreacted a bit. From what the OP has said I feel they know a visit to the vet may be required and that's why they don't need everyone telling them that. OP just wants to know if there is anything else they can do, possibly in addition to going to the vet.
Of course I could be wrong but that's how I read things. I know I wouldn't need everyone telling me that, just like most of you wouldn't.
The short answer is YES a snake can survive a bite from a cat. It depends on how severe the bite is and what kind of damage has been done. IF you are able to very carefully check out the snake and you know that there isn't much damage then you may not need a vet trip. You're the only person here that knows what actually happened. You don't go to the hospital for every scratch or cut or bruise and your pets don't need to either.
ALL THAT SAID if you don't know if the snake was damaged much or how the cat actually treated the snake then it's best to have a vet check the snake out.
