I can remember Randal Burns waiting a LONG time to get a tow back to the pits from Jesse with the John Deere truck.
Actually I do not think he got a tow. IIRC he had to fix it down there. Luckily it was something simple (loose crank sensor I think)
They repeatedly said he would be DQ'd if he towed it back to the pits.
That being said, I think they have changed their tune about incidents that occur at the track because you are displaced from all your tools & supplies.