Pontiac

For the most part, the callers were calm, patiently asking for the fastest path out of New Orleans or some other Gulf Coast city as Hurricane Gustav twisted its way to the northwest.

They started calling General Motors Corp.'s OnStar service by the thousands early Saturday, and by Sunday their numbers had grown to more than 3,000 an hour.

As more than 2 million people tried to outrun the deadly storm, OnStar beefed up its staff to around 500 and put emergency plans in place at three call centers in Pontiac, Mich.; Oshawa, Canada; and Charlotte, N.C.