FL Resident After 2pm Water Park - Is it worth it?

[Grommet]

I am looking to buy the After 2pm Annual Pass for the Water Parks but noticed that they close at 5pm on most days. Does anyone know if Disney is a stickler on the 2pm entrance rule? We have family visiting next month and they will be getting full day water park tickets and we hate to have to make them wait till 2pm to go in with us or for us to have to hold out till then while they're in there already. Does anyone know if Disney will make a one-time exception and allow us in say around 12pm? Or is there a way we can pay a supplement to our After 2pm pass to get in earlier for that day?

 

[dis-happy]

I wonder if you can buy a 1 day ticket, use it the day you need to, then upgrade it to a FL after 2 ticket afterwards????