Is it open on weekends to go and get tickets on the window?

They are open on the weekend but the hours generally vary. I suggest trying during the week. M-F they open at 10am

Yes they are open

Yes open on weekends.. tickets are purchased inside at the concession counter

I would look online for hrs since usually under google search it will show its hrs and you won't have to pay the online fees for tickets. But looks like Becky has the best answer of trying during the week.

I'm not sure but Becky seems to have the best suggestion. Also, you may want to check online. Wish that I could have been more help.