Climate Control sometimes gets stuck in heater mode

[WRH]

A couple times now, I've started the truck and started down the road (on a hot day) and have not been able to turn off the heater (and the AC on). the controls are lit on the dials, but won't change when pressed. When I go to the App climate control area, nothing responds there either. Meanwhile, the heat is making an already hot day worse. After five minutes or so, something happens and the system responds. Has anyone else seen this behavior?