If they prosecute, you will be served with a charging document. That may include a preliminary date (possibly a court date depending on the jurisdiction). If/When you get it, contact an attorney right away. Do not speak to police or anyone else until you have consulted an attorney.
This response is based on information provided. Many variables may exist that can only be addressed in an interview. This answer in no way creates an attorney-client relationship.
I suggest you contact a local MD criminal attorney before you do anything with the civil penalty letter and before you receive any notification of criminal charges from the court. I would advise against making any further statement to anyone about the facts of this incident until you speak with an attorney - many offer free consultation - take advantage of that office immediately. I am not licensed to practice in MD & am unfamiliar with their laws & procedure. Good luck
This is not intended to be legal advise or as legal representation. I am a California personal injury attorney . Be aware that every state has its own statute of limitations; and statutes & case laws that govern the handling of these matters.
Don't wait for a charging document. Make arrangements to speak with a lawyer now.
The materials contained in this answer are provided as a public service and on an informational basis. These materials are not intended to be a comprehensive statement of Maryland law, and are not intended to convey legal advice. I answer all questions. However, this does not constitute legal representation. I am not your lawyer until you pay me money. If you have a legal problem, you should consult with an attorney who can investigate the particular circumstances of your situation. If you need an attorney, you may contact me 410-828-9363 and I will be more than happy to give you a free initial consultation.
An attorney can assist you with evaluating the prosecution's case, any defenses that you might have, and any plea offer that might be made, so that you can decide whether to plea bargain or go to trial. If you were to be found guilty, then an attorney can assist you with presenting mitigation, allocution, and a recommendation for a more lenient sentence. and a recommendation for a more lenient sentence. Consider seeking a confidential consultation with an experienced criminal defense attorney. Beware that online posts are not confidential. If somehow the prosecution were to find your post, then it might be used in evidence against you.
Information in the reply is provided as a public service. It is neither a comprehensive statement of the law nor legal advice, and no one should rely on it as such. If you have a legal problem or question, you should consult with an attorney, who can investigate the particular circumstances of your situation. Responding to a post does not constitute legal representation. I am not your lawyer, until we make an agreement and I receive my fee. Beware that posts and replies are not confidential. Anyone can read them.