My AC suddenly started blowing hot air when I started my 2021 Model S. Was in a parking lot for about 40 minutes prior to. Have never had an issue before. Fan speed was on very high and blowing hot air. I tried adjusting the AC settings and putting it back on auto, but each time it kicked off the auto & went back to the high fan speed. Changing temp setting seemed to have no effect. Not a super hot day, about 85 degrees. Software says up to date. While fiddling around with things, the screen went semi dark and froze. Re-set the screen & it's working fine now but the AC's still blowing high speed hot air. Have tried Power Cycling the Vehicle & no change. Waiting for car to be towed. Anyone have any idea what's going on?