Overheating, will not start

While sitting in the drive through with the A/C running my moms car overheated it didn't make it to the red. She went home after sitting for 3 hours I checked the coolant and it was fine. So I drove to a friends visited then went back home, pulling into my driveway the temperature gauge was just barely above halfway. I shut the car off and could hear bubbling for maybe 45 seconds followed by about 30 seconds of steam. I opened the hood and there was water around the thermostat housing. Next day my mom drove a block away to the store, went inside came out and car wont start it just clicks like the battery is dead.