Is there any parking for a semi driver so I could stop & visit?

Yes

Yes park outside park its awesome

There were big motor homes in the parking lot. Yes

Yes there is

Yes. According to their website, buses and larger vehicles should stay left at the parking booths.

I imagine they would accommodate you.

No

I think so! They have 2 huge parking lots anyway!

There is bus parking, so I imagine that would work....