In the episode how long did Mrs Puff go to jail after Spongebob terrorized town?

Mrs. Puff doesn't go to jail in the episode where SpongeBob terrorizes Bikini Bottom.

You're likely thinking of the episode "Can You Spare a Dime?" where SpongeBob gets his boating license revoked after running amok in the town. However, it is SpongeBob who is sent to boating school, not Mrs. Puff.