1) Yes, there are hairdryers in the rooms.
2) You can request free late checkout until 1pm based on availability - call the front desk that morning and they will tell you if they can accomodate you (we were able to do it).
Beware, you can also stay for 1/2 a day but they charge you rack rate, even if you booked at a discount (our room was $169 with a code but we were upgraded and the rack rate was $325, so if we wanted to stay 1/2 day (till 6pm, I believe) it would have cost $162 plus tax).