PEH
That is a fantastic story! All the way to PA????
About the brushes not illuminating the light, doesn't seem logical does it.
I had this same thing happen to me, stranded in a strip-mall. I had no clue the alt didn't work. Fortunately I got help from the buxom bartender at the local bar in the strip-mall and got home. She jumped me with her new Z-28. Jump-started that is.
Checked the charging at the battery, nada. Put in a junk alt purchased at the local pick and pull for $10, and voila!
Thanks for reminding me about this odd failure mode.
To all of you out there, if you notice the starter doesn't turn as fast, or your lights seem dimmer, check your voltage!
If you don't have a meter, go to Radio Shack and buy one, Do it today!