calm down heir are a couple things you can do. First off you live in an apartment I was in apartment maintenance you want to be careful keep your grow box locked in a closet that dose not have any utility pips like water because they can come in your house with out permission if it is an emergency I have had to do this many times before. You have to cover your Windows real good if light from your grow room will be visible through your blinds try using black out curtains and double them up or something just no light leaking where people can see its not good especially if you are using hps lamps they put out an Orange glow which is different from household lighting..You will need some sort of carbon filter. LEDs are a good choice if you are worried about heat which if you live in an apartment it would be more difficult to vent
hid grow. I do not know where you live but where I live you do not open the door to the police if they have a search warrant they will see their self in. If you open the door they can say they smell weed and come in even if it dose not smell like weed. I have never heard about an IR unit flashing but who knows. I do not think they are trying to bust a guy with a couple of seedlings unless you told someone and they told the police. Be safe do some research on growing and hiding your grow and you should be fine.