Can I drop people off and pay for them , pick them up later without paying for parking

I believe if you buy the tickets on line and you can drop them off. Then they'll have to either walk or take a shuttle to a pick up parking lot later on

Yes, buy tickets online and there follow sign for drop off, very easy to do

I don't think there's a way to avoid paying for parking unless they shuttle them like from the bus parking

Buy the tickets online and drop them off at the park

I think so. Probably best to give them cash to pay, and drop them off by entrance gate. However, I did not notice if you can get in without paying for parking.

There is a drop off but you can't drive in to buy tickets. Best option for that would be to buy tickets online ahead of time.