why is my AC blowing hot on driver side vent but ice cold in every other vent

BLEND DOOR ISSUE.MOST LIKELY D/S ACTUATOR IS BAD ON YOU HAVE A BROKEN BLEND DOOR

If its just a blend door actuator, and depending on which one it is, you would be looking at a few hundred dollars parts and labor at the most. If it is a broken blend door then the dashboard could possible have to come out and it can easily get over 1000.00. That being said, its not out of the question that there may be a different issue causing this.