If he can still move the tail, the nerves are still intact. If the nerves are severed or damaged they will drag the tail. That can be a problem when released. I prefer an amputated, short tail for a release over a dragging tail. I released a girl with a 3 inch tail and she was fine. Cutest thing you ever saw.
Can you manipulate the tail or is it fixed at that angle? If you can manipulate it straight, you could probably wrap it with vet wrap. I see you are in FL. There are vets in FL that will see a squirrel if that’s something you would be interested in. It’s not life threatening but if it bothers you a vet might be able to manipulate it back into place and maintain viability. If the tail becomes non-viable it will die and eventually fall off or be chewed off at the break.
One thing to consider. Sometimes it’s best to do nothing. Wrapping the tail might draw attention to the problem and cause the squirrel to go after the tail when they would have ignored it.