I too had the a problem with a VIN mistype by the DMV. I noticed the mistake as I was buying the car and told the seller he had to get it corrected before I would pay him for it. When I called the DMV a lady told me I would just have to fill out a form. No matter if its a simple plant ID letter L for N etc, means absolutey nothing to the DMV. A error is an error and laws govern how they can be corrected. No matter that he had his old bill of sale from the used cars dealer, they would not make the correction without a police investigation. Told us it was state law with private sales.
It sounded easy as she explained it but it took several days to get a cop to come do it. Before they (State DMV Michigan) would correct the title, they had to have the police verify the vehicle matched the title. Lucky for me (I think) the police officer who came to my house to do this (rural sheriff) had never done it before. He had to run a wants and warrrants on me and cehck to see if car was stolen. Without the police filled form, the DMV would not do anything but issue the title with the error.
They could make you haul the vehicle in and they will go over it with a fine tooth comb before the will give you the paperwork. It all depends on where you live and how the treat these things.