CFM,

You're right, most of the people I've bought licenses from have no clue what's going on, and I had no idea that you don't get a parking pass for a two day license. People come from out of state to spend money here and F&W won't let them park in one of these lots for a day or two? Doesn't make sense to me and seems pretty cheap on the state's part.

But be that as it may, there is a large red and white sign at the Mission ramp stating that a parking permit is required and what the fine is for not having one. (although I haven't been there for a while, so I'll have to assume it's still there). I would think that clients would question their guide about this. Unfortunately, you can't count on the license vendors to tell people this stuff, so wouldn't the guide's be at least partially responsibility to inform clients before heading down?