we are currently in fl on our son's wish trip and we are planning to go to universal for the first time tomorrow. our son has a medical issue that stops him from sweating at all, so needs to drink lots of fluids all day long to keep from overheating. our cooler we've been taking into wdw is about 14x12x10. will i have a problem brinking it into the park even though it's over the stated size because of my son's health concerns? we only bring water and capri sun. tia