I think if you want any chance at still getting a deal, you better contact the prosecutor via email (in writing) soon. It is almost certain that they will not offer you a 3rd offer (or even the same one!) if you were warned on the record, and especially if you actually make them go through with preparing for the trial and calling the officer as a witness. As others have said, they don't have to make you ANY offers any time. But, if they made you an offer in the past, then they may still be up for it if you contact them soon and let them know that they no longer have to proceed with preparing for the trial. If you wait till trial day, unless the officer doesn't show up (which is extremely rare nowadays!), you'll have virtually NO chance for any resolution. In fact, they might decide to ask for a bigger fine since the set fine no longer applies but rather the statutory fines.