3 videos. 8 min, 1:45 min and 1:24 min sec to show strange overheating

Do you think it's just a gauge error? Maybe they aren't working correctly I didnt finish all three videos yet but I looks like the gas hand and the speedo is malfunctioning also.
Im thinking maybe. But what would cause the gauge to be in a normal temp and then spike as it did and then drop back. idk.