Blizzard Beach and Polar Patios

We are going for the first time to the water park in March. We decided to make it an all day event and reserved a Polar Patio. We were told that we would have someone to bring us water, towels, ice and food or drinks as requested. My question is can we tip the person who is taking care of us in the patio. I know other cast members can not take tips but I am thinking that this person would be more in the category of a waiter/server. Thanks