If you went 14.25 hrs punch to punch did your arrive on property before the 14hr mark?
In other words if that extra 15min was spent on property cleaning out your truck, whatever, you were NOT in violation as you weren't operating a CMV on public roads.
I went over 14hrs today, I hit the gate under 14, brokedown my set, fueled, cleaned out the tractor, then spent an extra 15 min because the IVIS wouldn't let me log out of the tractor. By the time I was able to log off the tractor, go to dispatch and punch out I had a 14hr 55 min day. (13hr 55 min paid). I do not expect to get a letter over that.
I'd definetly fight the letter. I'd probably tell them in the meeting with the steward present that, I would also tell them if it were to happen again I would pull the truck over, send them a message to come get me, even if I was only 1/4 mile from the building. (No cell phone calls because they don't pay my cell phone bill.)
I've gotten letters for DOT violations where I screwed up, I admitted it, recieved the letter, wiped my butt with it and moved on. If they gave me a letter for BS though that's a tottally different story.