She is from San Diego, which of course is on the Pacific Ocean. It would be quite normal to have the ashes of a loved one put in the ocean.
My Mom resided in Florida and was never in the Navy, yet her ashes are in the Gulf.
Nothing strange about it.
I also know people who were lived in Florida that were not buried at sea. Rush Limbaugh for example. Every small detail could be explained away, but put together it seems very strange.