Just for clarity:
There is no put in/take out "in" the park. The park surrounds the spring branch. At the end of the spring branch there is a boat ramp and parking lot (labelled "concessionaire use area") but this isn't the outfitters put in/take out, it's the Parks ramp and it's where their customers put in or take out. I am unaware of any outfitters that use that ramp.
All the outfitters use the Bennett Springs Public Access 1/4 mile downstream, it's a state public access with 3 separate launch ramps that gets pretty well covered up with aluminum from various outfitters from 9am to 3 pm during the warm summer months.
What's apparently being enforced is simply the outfitters picking up the Bennett campers IN the spring branch and then taking them out of the park and to the river then dropping them back off IN the park. The state doesn't want to compete, and it's realized that technically it doesn't have to. Instead their customers will simply drive to the outfitter of their choice.
(Or to use the analogy from earlier: I can't solicit car sales at the park, but if you were at the park and called ME and said "bring a truck on out, I'd like to look at it", I don't think I am legally barred from doing so..)
Pretty darn stupid argument if you ask me, but maybe I'm misunderstanding it?