Basically what happens is there will be drop off points where reps with unload your car and bring it all in front of your room, so you still have to bring it all inside but most of the work is already done. Make sure you label them well as you don't want anything being placed in another room. If people are taking long picking up their keys, the hallways tend to pile up and it's all just one big mess.
However you will be asked to carry all valuables like printers and laptops and for good reason. It's quite organized, but with so many people stuff happens.
Not sure if Les Prince offers key pickup closer to the building since it's so far, but usually they'll be table set up just outside the Commons Building. Don't worry if you don't know where that is. They'll be lots of people helping direct traffic.
Your parents came come done and help you unpack. Only thing is once you car has been unloaded, they'll have to find a place to park and then come meet you.
And yes, there'll be non-stop cheering, gyrating, loud music, and just a crap load of energy so prepare yourself.