On Saturday I watched a journo from a major news source denied access to the Bill Clinton event's media spots. Why? He didn't do the leg work before hand.
If you want to get into the press areas you have to do the work first. Contact the press person for the event. Follow that up with an email or another phone call prior to the event to make sure all if in order.
Make sure to take your press badge with you to the events. Have your DJ press badge laminated. It's best to have a neck cord for it so it's visible at all times.
While you are waiting to enter the event strike up a conversation with other journalists if you can. Those networking connections are a useful tool.
Most of all enjoy the events. :)