The engine seems perfectly fine.
I took it to the brake place that changed the brake pads - he thought the calipers were sticking and took them apart and cleaned them for $80.
Last night which is only two days later, it happened again on the highway at rush hour! The rims on the front of the car were really hot. Basically the brake gets really hard and then it becomes more and more difficult to accelerate until it just won't go anymore. I pulled over out of the way and after about a half hour, it cooled off and i was able to drive home.
The mechanic is coming to get it again today.