Could you please be more specific about this "warning zone'? I am on the Hostgator too but never experienced such extreme.
Did you see something on the Cpanel?
My BLC runs a "Nuclear Option" as a developer calls it and there is currently 29000 URL in the work queue and the current load is 0,02
In other words, are you sure that the 'spike' wasn't a figment of your imagination?
Thanks in advance.