Battery Dead problems of the 2014 Ford Fusion

While driving on a California freeway, a foul sulfur smell filled up the cabin with my family inside. Less than 12 hours later, the car battery was dead and there was leaked fluid all over the battery. The Ford motorcraft battery has a 7/16 sticker, and we are in 9/18. There was no corrosion to the terminals. The smell that was released was hydrogen sulfide, very toxic and deadly. It is also flammable. Because of the failed battery, we could not open the doors except for the driver side, which we opened from the outside using the hidden key inside the fob. The other doors and windows are still non-operational due to a dead battery. This leads me to my main concern. If the battery had caught on fire due to the leaking acid, my family would have been trapped inside the car because the power doors and windows would be non-operational. The only possible escape would be through the emergency trunk release however I am not sure of it's functionality without power.

In the summer of last year 2018 I was in a store shopping came out cranked my car, the air would not come on and the windows would not roll down. It was in the 90's that day and even hotter inside my car! the vehicle was stationary at the time in the parking lot. It had this problem the rest of the summer while the temperatures outside was hot. It is April 2019 and just a few days ago we had a warm day around 75 degrees. I left for work stopped at the end of my driveway had the car in park and left my door open while I got the mail. Got back in and again did not have air and could not roll the windows down. Every time this happens the radio will not work either. Last year during the time the air and windows were not working my battery was dead when I was going to go to work one morning. Took it out and went and had it tested at local auto parts store. They said they had never seen a battery that they couldn't read like that before. It's like the battery was fried. Along with those problems last year my car was stationary at home in my driveway and I went to get in my car and my doors were locked I tried the remote and the keyless entry and nothing would unlock my doors. So I had no access to get into my car. A few days later I tried again and it unlocked. I've also came home a couple times at night in the past week and noticed the inside lights where the air/heat & radio controls are is flashing on and off and the outside ground lights under the mirrors on the driver and passenger door are on. I had to unhook battery. No keys in ignition and car is stationary in my driveway. I think this is a major safety issue when you have no air and you can't roll down your windows in hot weather and also when you get locked out of your car. The car is definitely not drivable in hot weather! unknown cause, may possibly be something in the computer or wiring of the car.