As quickly as you can, contact an experienced criminal defense attorney. No matter what level this is, if not handled correctly, it can haunt her for the rest of her life. Depending on her record, if any, she might be able to avoid a conviction for retail theft.
Mr. Kenny and Mr Keller are spot on. My guess is that it is not if you will be charged, but when. I suggest that you contact an attorney now so that you have a jump on representation when "the hammer falls".
Time served means just that. You get credit for the time you have been incarcerated. The sentence will probably have a "back end" such as time served to X months. Your attorney should be able to work this out and explain it to you.
The short answer is "as long as it takes". But even though the PSP lab is terribly backlogged, this seems too long. I will assume that you have a legitimate interest in this case other than as a bystander. I agree with my colleagues that if so, you should try to contact the investigating trooper and ask for a status report on the progress of the case.
Both of my colleagues are correct. Simple Assault is a misdemeanor and yes you can be violated for a misdemanor. You may need two lawyers, one for the state offense simple assault and check back with the lawyer that represented you in the Federal case or perhaps the one lawyer is qualified to help you in state and federal court. Good Luck
The short answer is "yes". It is a violation of the vehicle code to knowingly allow an unlicensed/suspended person to operateyou vehicle. But the advice of my colleague is well taken You and your parents should consult an attorney who is experienced in license restoration