OMG...I feel your pain. I recently also could not use my garage. Long disgusting ridiculous story....one night I didn't pull far enough in and the door did not go down, apparently a (pack? herd?) of rats got in and found an old bag of hamster food, well I guess that was like finding hidden treasure for them. The next night and every subsequent night they chewed their way IN by eating the rubber seal underneath the door to gather and consume (and subsequently excrete)

their booty.

Before we figured out exactly what was going on, we replaced the strip under the door two or three times. Of course it/they chewed right through again. And we'd walk out there in the morning to find piles of opened sunflower seeds (this was before we figured out where they found the hamster food), it looked like the floor of a dugout after a ball game! So anyway we spent a weeekend thoroughly cleaning and de-rat pooping the garage, setting traps, blocking it off with 2x4's etc. and I had to park outside. And as all the Floridians here know, it hadn't rained anywhere in the state for months, we had huge fires consuming the state, a massive drought, dissappearing lake Okeechobee...And OF COURSE the whole time I had to have my car outside it rained EVERY DAY.

Never did figure out where the little rascals came from..I guess the wooded conservation area behind our subdivision. I had never seen any around here before or anything. Thank goodness they just never came back, I don't think I could have been able to stand seeing one in a trap!!!