Anti theft system / battery malfunctioning 2017 Hyundai Elantra SE

Bought the car less than a year ago in the winter and found problems with the battery a few days after, swapped the battery, died a bunch more after that, swapped it one more time haven’t had problems since then.

Until last night at my girlfriends house I tried starting it and heard a click then saw the anti theft is on.

So far we’ve tried locking/unlocking the door manually didn’t work

Grabbed my spare key and key fob neither of those worked

Disconnected the positive put it back on Disconnected the negative then positive and put it back on in reverse We’ve left it disconnected over night and they’re going to reconnect it in a bit

We’re going to tow it with CAA to either my house or a shop but we haven’t decided yet

Any thoughts?