SEAFORD - Nassau County has set up a mobile insurance center to help Long Islanders get answers in the wake of Hurricane Sandy. The center opened at Cedar Creek Park in Seaford, where the Department of Financial Services is available to offer advice to homeowners. Representatives from Allstate, MetLife, New York Life, Travelers and USAA are also on hand to help. The facility is located in Field 2 of the park and is open from 8 a.m. to 11 p.m.