Perhaps the maintainer of the FAQ should add this?
In Winston Cup, a driver which pits while the pits are "closed" during
caution is assessed the following penalty:
If he is able to complete his service work under the original caution
period, he is allowed to rejoin the field, but must go to the tail end
of the longest line of cars.
If he is unable to rejoin during the original yellow, he is permitted
to rejoin under green with no penalty assessed.
In N2, you must go to the back of the field WHEN THE ONE LAP TO GREEN
comes out, if you pitted into closed pits. If you do not, you will be
assessed a black-flag stop and go penalty for passing under yellow.
(You should have been in the back, and you weren't, therefore you must
have passed under yellow...)
BTW, that's how it's supposed to work in the game. If it doesn't work
that way, it's probably a bug.
If you have severe damage, go ahead and pit into closed pits. If you
have only a front tire damaged, and feel comfortable in being able to
race the car to the waving yellow and pace around until the pits are
open, that's the better strategy.
---Jim Sokoloff, Papyrus