Suffers. The attack is ongoing. That is a very high titre.
I presented in DKA but did not get antibody testing till a year after low-carbing.
If you are looking for clinical information though it is best to look in a textbook such as Joslin's. In fact, Joslin's has a very good section on LADA Diabetes, (ICA-negative might point to LADA rather than classic Type 1).