I am seriously still wondering how it went.
I used to live down in SD for college, but went back up north after graduation.
I couldn't help but google map the two points, since I remember that San Diego terrain can be tricky to navigate. It is typically more hilly closer to the coast, and more flat going inland. I also know for a fact there are a lot of cyclists in the area, and that's because I see them all the time over the weekend riding through campus in groups rides.
Google map guesstimate
Overall it looks like a pretty smooth ride, but it will be a battle going up grade when going hope to the wife and expecting child

I wouldn't worry too much about speed, and make sure to budget plenty of time to travel. Your pace will start picking up in a month after your legs are stronger, and your weight starts dropping.