2018 Honda Civic - Waking up to windows being down?

Last night I turned my car off, heard a weird beep, a red light on the left side of the dash flashed a few times (looks like a theft light although I've never seen it before) then my 4-ways flashed a couple times. This lasted for like 6 seconds then stopped so I proceeded to lock my car and went inside.

I woke up this morning to all four of my windows down. I'm reading online that this has happened to people who have accidentally held their unlock button too long on their fob but I didn't do that last night and it doesn't explain the beeping and flashing lights before I even got out of my car. It's a brand new off the lot 2018 Civic.

Any ideas?

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