Hi! We'll be in Anaheim from 8/30-9/4. We really want to take a day and drive down to San Diego to hit the zoo and possibly Cabrillo National Monument (if there is time - kids have national park passports and love getting stamps). We chose Saturday to go based on feedback about weekday traffic, but it just occurred to me it's Labor Day weekend, and now I'm wondering if making that drive is a mistake traffic-wise and crowd-wise? We're early risers so we'd get up and hit the road early as necessary. Thoughts?