Hi guys
Have a huge problem with my Sentra 2008 Automatic

Just happened today, in the morning the car was fine, went to the bank, then work. Everything normal, nothing out of the ordinary
After arriving at work, an hour or so after I arrived, had to move my car, started just fine, parked again, and tourn engine off

The key won't go to "0" and I can't remove it

Started the engine, started fine, now shifter won't move from "P", and
key still won't go to "0"

Please help

I got home by resetting a little hole/button on the side of the shifter, once I let go the brake, shifter will not move from P and my keys won't move to "0"

Brake lights work fine

Brake/shifter interlock problem? It can sometimes be a battery getting close to bad too.

What about they key? Battery is new

You might try squirting a bit of WD40 down into the key slot as best you can with key still in place. Sometimes the lock cylinders can run dry of lube and suddenly refuse to let the tumblers work. Past that it may be expensive locksmith time.