I don't know if they offer gift certificates. I think my wife had to schedule and pay before they sent me the confirmation and releases.
The releases basically say that driving a race car is dangerous. It says that RPDE takes good care of their cars but if something goes wrong you could die, and even if nothing goes wrong you could die - either way it's not their problem. It also says that if you wreck the car by accident you're not responsible, but if you do it on purpose (?!?!) you are.
As far as choosing a package; When I was there I learned about the possibility of running extra laps at a discounted price. You can save some significant $$. It's basically the "kings experience" at a $200 savings, but it's not guaranteed (depends on the size of the class). It may make sense to buy the less expensive "rookie experience" and see if you can upgrade once you're there.
email me if you have any questions that I might be able to help you with.