Hello
I am having a beer right now in the surfside lounge @ paradise pier while the family naps, (they have wifi internet connection) To answer your question, yes there is a hairdryer in the room. And all hotels will watch your luggage until you have to leave for a late flight, some even provide a hospitality room for showers. Not sure about this one though, maybe someone else knows.
One thing to mention about paradise pier that I am dissapointed in is the lake of food here from 2pm to about 5pm...can't order anything hot in the bar, and the pch grill is also closed. All I am able to do is order another beer...
Have a fun trip, Ours is going great. Even got picked to go on Nemo for an advanced trial run. The kids loved it!