Was resolved when relogged thankfully, but anyway...
Entered another player's area with which I had trespassing rights but not theft rights. Brought a boat into the area.
Deposited some items.
Attempted to withdraw chest from boat. Didn't work.
Attempted to withdraw boat from area didn't work.
The bug:
Player had his claim stake built into his house (same tile, glitch).
Player had a cart right on his claim borders.
Walked in between cart and an uncompleted item which yielded a corner bug.
Player declaimed area.
Player moved cart.
I couldn't move outside of where I was previously stuck. Could not even drop the boat.
Thankfully, relogging worked. Traveling to hearth wasn't even an option.