I noticed my A/C blows hot air out of the forward vents with the temperature setting at 75. I have observed this with outdoor temps in the 50's and 60's but have not driven it enough to pay attention if in the 70's. I do not have it set for automatic and have the rear turned off. Front sides are synchronized and fan is on low. I have it blowing to the front vents and/or legs. Is this normal? Does it use the outside temperature to think it knows what I want on the inside, even though automatic is not enabled?