yes. he needs to go to court and plead his case, just as anyone else that breaks the law does.
To paraphrase a well-known expression from a book which once was revered and respected:
Let him who never made a wrong turn on the road demand this marine be kept in stinking Mexican jail.
Also, let him vacation in the hell hole known as Mexico. Maybe he will experience what the sergeant is experiencing, for walking the wrong way on a one way street.
i'm sorry but i have little sympathy for the guy - unless you're going to tell me that where he crossed into mexico didn't have border guards, didn't have signs, and didn't have any way for him to turn his vehicle around.