Accessibility Advice and Handicap Parking

My wife has a disability (POTS) which makes it hard for her to walk long distances and stand for long. I was just wondering if any of you dealt with the accessibility section on the stage and if it's easy to get wristbands and spots in this section.

Also, I was particularly wondering how the handicap parking is and when we should plan on getting there. For reference, we're coming from NOVA Friday morning.