TRENTON — They won’t be kicking one family out of a state park because of the state government shutdown.That would be Gov. Chris Christie, his wife and kids. The governor said he and his family plan to spend the long Independence Day holiday weekend at the governor’s summer house at Island Beach State Park.The beach house is one of the perks of being the state’s chief executive. While he doesn’t live there, Christie also has use of Drumthwacket, the official gubernatorial mansion in Princeton. When a reporter asked Saturday if he thought it fair that his family would be free to enjoy a state park that would be closed to the public as a result of the shutdown, Christie stressed that the beach house is separate from the park and that his family does not ask for any state services.