It's $11 to park, the sign is here.
http://www.nogodforme.com/images2007/IOA1mp02040720.jpg
You can park for free in the TGIFridays lot across the street. No one will mess with your car, the walk is about 10 minutes to the garage.
Universal Orlando Offsite Hotels
The problem with hotel shuttles is that they don't start running until 9 or 10am. This takes away your early morning advantage. The other thing is hotel shuttles are spotty when it comes to the schedule, and at some hotels, you have to pay.