Crooked Steering Wheel Towards the Left?

I have a 2011 Ford Crown Victoria Police Interceptor that has it's steering wheel crooked about 15 degrees to the left. I have had the whole front end suspension replaced along with 2 alignments from different shops. If I let go of the wheel while the car is driving, it drives straight but the wheel misaligns itself. If I take a sharp left the wheel becomes more crooked (about 20 degrees to the left) but a sharp left results in it nearly straitening itself out (only being about 5 degrees to the left).

If I have the wheels straight and I turn to the left while at a stop, there is a very faint vibration. No such vibration exists when turning right.

Another detail that might be important is that when the key is out of the ignition, the wheel will not lock itself when turned to the left. However, it will still lock when turned to the right. I will attach a video of this.

I have owned the car for almost a year and it has always had this issue but just assumed it just needed an alignment. It has never had the other symptoms of a bad alignment like pulling or worn tire tread.

I spoke to my mechanic about this and he suspects a bad U joint but has to remove the steering column to be sure. I just wanted to see if I could get a second opinion or find more information to provide to my mechanic to see if I could narrow this down anymore.

Thank you in advance.