Better safe than sorry...I have a friend who stored his Chevelle in his home garage,safe you'd think...Not....A critter free garage had critters.Ever smell mouse pi$$ from the heater ducts? It stinks!I like to remove all the "paper" from the car as well. Ever see a glove box nest? I've seen spiders, snakes, bee's, rats...even a groundhog..LOL..Pay attention to cars that have sat for a few years. You may never feel safe..
Steve