NRG Parking during Disney on Ice

So my family will FINALLY be seeing Disney on Ice for the first time. I know parking is killer during big-name events (concerts, games, etc).

But can anyone chime in regarding parking during Disney on Ice shows (which has lesser seating so maybe lesser cars?)? I’m debating whether to park in the blue lot or do the train…

Also, is parking in the colored lots pay as you enter? Or do you get a pass beforehand? If pass, then where do I get that?

Sorry soooo many questions. First time to go to an event there that’s not the rodeo lol

Thanks!