First of all congrats on making it. Basic service and hospital sponsered classes are the norm across the US. Reading trade journals (JEMS, EMS Magazine, etc) are a good source as well.
If you have the spare cash and you can find a used one it would not hurt. Like many have said after being in the foeld for a short time you will be able to recall most of the info from memory but, it never hurts to have a memory jogger from time to time.
This sounds like a tough but, common problem. I know very few people that like to be "called on the carpet" with QA but, it is there for a reason. It sounds like a judgement call that you now have to stand up and be accountable for. Most medical directors will listen to your theory about why...
Well first of all be sure to claim all tickets, etc on the application when you apply to a service. If you do not it would lead them to believe that you are not honest and that is a bad thing. Like jgmedic said earlier it wil depend on the insurance provider as to if you can drive or not. Now...