Thanks guys!
I'm not that worried, maybe I should be? But he just started coughing last night, and I looked up YouTube videos of dogs with kennel cough and it's like, the EXACT same thing.
It definitely could be from the boarding place as they don't require the vacc, but it could also be from another dog in the apartment, or even if a dog at work had it and I brought it home on my clothes. Who knows.
I'm going to be super careful about changing and not touching Frodo right before I leave for work, I don't want to get anybody else's dog sick! What really sucks is last night before he started coughing I took him upstairs to a friends apartment with her dog. Arg, I REALLY hope her pup doesn't catch it.
Frodo seems to be doing less coughing this morning than he was last night. He was up pretty much all night hacking until he gagged. At least he's sleeping now.