Even at that hour of the night, the jailer cared for them and washed their wounds. Then he and everyone in his household were immediately baptized. He brought them into his house and set a meal before them, and he and his entire household rejoiced because they all believed in God. – Acts 16:33-34
This jailor met most unusual prisoners. In his short time with Paul and Silas, he came to understand that it was he who was imprisoned not them. While no doubt he had heard many under his lock and key, complain that they were jailed unjustly; likely none had opened their mouths to pray and sing praises in his keep. For no others, in his experience, had the Hand of God moved to set men free. None would have stayed with their way out so assured, to protect the life of their captor, who would have forfeit his life in payment for their escape.
The jailor kept to his employers charge, holding the men safely under his care and bringing them into his home, but in the end he found a new Master that would keep him and his whole family safe in HIS care and HIS home. The jailor left his prison in chaos and brought his house into order.
He may have gone back to work, but not to jail, for he was set free indeed.