Too hot?

We got back from going to the pumpkin patch. It was warmer than expected and I dressed too warm. I got way too hot, I drank 60 oz of cold water within the 20 minute drive home and immediately turned on the air conditioning. I changed clothes too but I’m still super hot. I am 38 weeks pregnant so taking a cold shower is not something I have enough energy to do right now, after all the activities I’ve done, it’s all I can do just turning from side to side while laying down. Is there anything else I can do? I’m miserable!