Problem is, I saw a guy at henegar landing in DL last summer pull his boat out of the water and up to the fish cleaning station to clean fish. The warden was there and hopped in his boat and gave him shit about water in his livewell. Not sure if he got a ticket or not, but apparently you are supposed to drain everything on the ramp? That just creates a bigger CF at the ramp, especially a busy ramp if everyone pulling the boat out is stopped on the ramp and draining boats/livewells etc. I know that there is a purpose for the rule, however enforcing it/interpreting it may end up pissing a lot of people off.
I would bet bet if the guy already had the plugs pulled it wouldn't be a big deal, but it doesn't sound like that was the case. The GNF isn't going to require you to wait ON the ramp for your boat to drain, they know how busy some places can be, but if you don't have your plugs pulled from the loading/unloading areas before you get to the fish cleaning station or to the main road out of the ramp, then yeah, you should get a ticket. It's a simple regulation to follow.