Thats what i was so confused about as well!! The engine kept in the high RPMs no matter what i did. The brakes were still and hard to press down. I literally just had to turn my car off so my engine didnt get too messed up.

Is it relevant that I got a car wash 20 minutes earlier? Thats the only irregular thing that i did. It wad about 30 degrees outside as well if that's important.