You can apply for an extension. Be sure to first determine whether or not an expired out of state inspection is a violation of the law in that state.
What do I do when I get my extension sticker?
Do not put it on the windshield of your car while you are out of state. Just keep the sticker and the instructions in your car to show an out of state police officer. Please understand that the extension sticker does not guarantee that the officer will not issue you a traffic ticket.
How do I get an extension sticker?