To the moron in the large crew cab truck:

Dear Fellow employee
I am so glad that you are so excited about coming to work that you had to pass me this morning. I was, after all, going the speed limit but you were in such a rush to do your job that you passed me anyway, on that blind curve. I can't tell you how surprised I was when a scant 200 feet later you parked!
You should know that I love to ride my bike in the plant because the speed limit is either 5 mph or 15 mph and I can ride the speed limit (yeah, I know, LIMIT means I can ride slower than that too, but I digress) just like the rest of the traffic. I found it amusing as well that before you could turn off the road to park you had to slow down for a forklift - he was going the speed limit too.
I really hope you pursue the rest of your work day with the same enthusiasm

yours truly,
that bicyclist you passed this morning.