Thanks for your helpful advice!
Jodum - This is actually more about she and I spending some precious time together than about the GP. We'll have a good time regardless of how boring it is, believe me. And this will be our first of many GPs around the world, no doubt.
trafficjam - About how long will it take given typical traffic conditions? I've been told elsewhere that it's about an hour. Not worried about the tickets.
Douglas - Just the kind of advice we need...