Apparently I fail to realize that I seem to get around the world more than a cheap whore but- (not that you asked even) but if you're going to San Diego in the future I found a few spots you might be interested in.
(1) Old Town - probably my favorite place in SD and worth the time if you can spare it
(2) San Diego Zoo- likely the best zoo I've ever seen in my entire life
(3) San Diego "wharf" / "seaport village" - honestly the best tacos (street tacos) I've ever had in my life
(4) if you're a beer drinker- check out Stone Brewery, that's one that I don't think has ever brewed a beer I didn't love. All personal taste driven of course but personally I'm a huge fan of Stone Brewery.
(5) Lots of cool ships to see anchored there as permanent museums, extra credit to the Star of India ship they have docked there.
All that said- aside from the street tacos, I've had better food elsewhere.
<ETA: watch out for the homeless guys (seriously). Nobody wants to hear this story here but I watched one particular fellow masturbate "vigorously" and yell obscenities at women walking by for over a week and that was... well just what he did. Also the street lights talk to you there in case you're blind apparently (again not making this up).