Your engine temperature is too high - check the coolant levels ASAP. Low coolant will cause both your wife's report of no heat and at the same time excessive engine temperatures.
Kind of what I expected with the original symptoms. There will be some air caught in the radiator - it will burp out over the next few thousand miles. Keep an eye on it as I think you have more than the usual seep/loss of coolant.It was just below the lower hose. Got all the air out of the system.