I said this before, you can ignore the ticket and not pay it since you are in your right and the government has no formal record you ever receiving it. Then you can stand on the high ground and know that no mater what you will win.
However in the process the government will see this as an unpaid ticket, they will not care why it is unpaid and put a warrant out for you and possible suspend your license. Then the next time you get a ticket the officer will see that there is a warrant or suspended license and will issue you more tickets, possibly impound your car, and maybe haul you in.
Remember you did nothing wrong and you were in your right, however the mess you are now in will required you to hire a lawyer to clear yourself, and mostly likely you will win since the original ticket was never valid. Oh, keep in mind all the money you spent getting out of this you will not recover since they government will never reimburse you for their mistake.
I know this sounds harsh but this is the current over zealous method local government are using to make revenue, since most redlight cameras have not made intersection safer, it about making money in the guise public safety and you know what happen when you get between someone and their money.
A long winded answer to just go in and fight it and show that it is not you, and asked for an immediate dismissal.