BigBirdLS1

As title says I am currently storing my car in my parents garage. It has been there since Feb. I have access to it and have driven 350 miles since. My questions. Do I need to do anything special in preparing it to stay there for along time? How would you suggest I keep spiders (bugs) out of car. I have found one with a web inside the cab and one laid an egg sack that hatched under the cover on my windshield. Also I have noticed that the bubbles on my sail panel have gotten WAY worse since it has been sitting there. What could have caused this and what can I do to stop it. I know this is alot to ask in one post but I would appreciate all of your ideas or insight.