sfa & lph, thanks for the info on the literary quote. "Gang aft agley" sounds like something I'd mumble after having a few too many post-ride beers! 
Now, about the tire...true confession time. I've been really, really slacking on my car maintenance habits.
The last time I checked my tire pressure on the TSX was a couple of weeks ago. My tires were holding their pressure well, so I wasn't dilgent in checking them. Yesterday I was in a rush to get out of the house, get to the starting point, and get on my bike & out to the beach -- I don't even think I glanced at my tires.
My driveway had a slight trail of rubber where my right tire would have traveled. I'm almost positive that the tire was dangerously low when I left the house. Not only did I not see the problem, I didn't even notice issues with handling problems on the way out to the freeway. As someone who considers herself a car enthusiast, this is more than a little embarrassing. 
Well, it's a good wakeup call to do a better job on car maintenance.
Also, I'm really, really grateful that:
- I was able to get over to the shoulder without hurting myself or anyone else on the freeway
- I had really great help from the CHP and AAA
- My wheel was not damaged
- It happened when it was time to replace the tires anyway
- I have the $$ to replace all four tires
- And yes, most importantly, I STILL got to go for a bike ride!
I'll get back on the bike soon, I promise!