Can I leave my alcohol supply in a storage locker?

’m moving and have some alcohol that I don’t want to waste. It’s mostly liquor and a bit of beer and cider. Can I leave this in a closed crate in a storage locker for 3 months and still drink it without ill effects (ill effects worse than the normal ones from drinking alcohol). My main concern is general spoilage or possibly the alcohol turning into methanol or something like that (it’s been a while since my last chemistry class)