There is no way any of us can know the answer to this.

IMO you have no grounds for a lawsuit, and Dollar General was well within their rights.

If you are an adult you risk being sued. If you are a minor, ask your parents.

Ask his lawyer. ...............................................

The same way you sue anyone. Retain an attorney, and have them do it. You are not going to sue a multi billion dollar corporation on your own.

Bad customer service, but not a legal issue.

You don't know what they "know" or believe. This is a matter to discuss with your lawyer, and only your lawyer.

None of us can teach you to practice law. This is not a DIY project.

You can report it to the police, but you should consult an attorney before hand if you want to try to avoid your daughter being charged. You can...

Have you asked them to remove it? Or checked your lease for whether it is permitted?