La Jolla Half Marathon - out sick

I was supposed to run the La Jolla half marathon today. After getting out of work last night, we drove down to San Diego. Along the way, I started feeling kinda sick and within a few hours I had a fever, sore throat and runny nose. I thought I could still run the race but by 2am, it was only getting worse and there was no way. I really glad I didn't run because today I feel like crap but I'm really bummed out about not running.