Foxes are just godly, overheating questions and story

Before I get reamed about posting a story in tech, the main purpose of this thread is to asks some tech question - though I'd also like to brag about our cars.

Have a test this morning, wake up hella' late. I pull into the parking lot and mother nature commences to dump a monsoon on UCF. So I'm looking around for my umbrella and cannot find the damn thing. I shut off my dual fans and get out of my car - leaving it running for some reason - and scour through my backseat for an umbrella. No luck. Annoyed cuz I was getting soaked, I don't think and shut my door. Realizing what I just did, I practically punch myself in the face. Car idling in spot, fans off, test in 2 minutes - GREAT!

So I call my girl, tell her to get down here with my spare keys in a hurry and then run into school to fly through my test. Get done in 25 minutes or so and rush out, thinking she would have gotten there in time. She's there, but has a story of her own. Pulling into school, my car is surround by parking services. Apparently is was smoking so bad that they noticed it and came and opened the lock and shut it off - didnt think they were that good Opening the hood, my radiator is still hot hot hot. Starter hesitates a bit on startup cuz of the heat, but I get my fans on and scurry to a gas station. Dump a whole gallon in the reservoir and let her sit for a bit. Driving home, about 5 miles. Temperature starts climbing, by the time I got home, she was steady over the red line on the stock temp gauge, not good.

I let her cool down and put 2.5 gallons of water in the radiator, burped the lines etc. I check the dipstick and its clean oil, no fluid that I can see. Radiator smells like coolant, not exhaust. SO:

Is there anything else I need to check?
Can I assume I got away lucky?
Should I slap a new H/C/I combo on there for the sake of safety?

Seriously, anything I should keep an eye on?

Well, it was locked and missing my test would have meant failing my class . Still, shameful I know

Well, for anyone who's still interested, it seems I may have gotten away very lucky. Have been driving the car for almost a week now and have notice no coolant in the oil or any problem with coolant. I flushed the coolant system to make sure and also to get my coolant/water levels back to par. So far, so good!