The licence plate number being off by one digit will not invalidate the citation.
Negotiating a good resolution given the circumstances of your case will take an attorney familiar with the policies and procedures of the court where the matter is pending.
It may be worth your while to consult with a traffic attorney familiar with the judges and practices in the court where you received the ticket to explore your options.
Check with a lawyer in your locale to discuss more of the details.
Good luck to you.
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An element of every crime that must be proved by the state is identification. That is one of the most fundamental tenets of criminal law. The burden of proving each element of any crime claimed, is on the prosecution. The defendant has no duty to help the government convict them by telling them information. This is powerfully anchored in the Fifth Amendment. If the government cannot identify you, then they should not be able to charge you with a crime. Police officers can write citations alleging so-called tab charges of minor crimes, but these are subject to review and approval by a prosecutor. If you do not respond to the ticket, I question whether you will be charged since according to the facts you state here, they may not be able to identify the vehicle or its owner. It is a stange but known phenomenon, that some have put the ticket the find on their car, onto a nearby car, hoping the other driver will not notice and just pay it.