We use EZ Pass for heading over the Bay Bridge to the beach and it often works great. Well one time we were headed down and I guess I went through the gate too quickly because the light didn't go green so I slowed down, rolled down the window, held the damn EZ Pass out the window, nothing happened, I keep sloooooowly rolling forward, arm outstretched, and then the loser alarm (loud buzzer that tells everyone you didn't pay the toll) goes off as I head through towards the bridge. I was pissed.
Never got a fine, never got a notice, nothing. Maybe they snapped a picture of the license plate, saw me trying to pay, and just debited the associated account...? No idea.