Last night while driving home my A/C quit blowing cold. I also noticed the temp gauge was staying on cold, not moving at all. When I was home and turned it off, the fan stayed running for 4-5 minutes. Went to bed and tried again this morning thinking it was a glitch. It’s still doing the same thing. Temp gauge stays on C, hot A/C and fan staying running after turning off. Any ideas on what it could be?