Just follow the directions. If nothing is flashing... you don't have to stop...!
Reminds me of a sign we have near here at a level crossing... "No stopping on tracks - $45 fine". How about that big ol' train crashing into you? Is that not incentive enough to keep moving? I'll have to get a picture sometime...
I always upset my Step Daughter (When she was 12 )
The Sign near our lake:
SLOW
DUCK
CROSING
I would check to see if there were any --and if there were no ducks, I would say "OK _ Where are the slow ones!!!??? It's Natural SelectioN!! We'll Cull Out the weak & slow ones!!!
She would get all upset & look out the car windows