Here is a photo of pipes as quagga mussels attach.

And here is a photo of a boat outdrive that is stored in quagga infested waters.
There is no way that this will not be a major financial drain. I am a partner on a small houseboat in Powell. We have 4 owners. Within a few years, the infestation there will start to cost me (not our group) over $500/year (cost to launch/retrieve and clean the houseboat).
I can't imagine what it will cost the state/feds (which tax payers pay for) to keep the outtake pipes clean.
And I agree 100% that it sucks that lakes close during prime fishing times. But there are ways to keep them open while at the same time limiting the risk of these mussels being introduced.