That sounds a little like what I came up with a little while back. My lib can stream JSON to/from my own compact binary format that is easy to traverse/emit in C:
I don't recall reading such, but I can tell you from experience that there was absolutely some sort of physical sensor, electrical, or software problem. I was sitting stopped at a red light with my foot square on the brake when the engine on our 2009 Corolla started revving hard. The brake held, and I was able to pop it into neutral and safely turn the car off and on again. Then it was fine.
It did it to me at least one more time in a similar situation. I am very glad not to have been driving in traffic when it happened.
The trouble went away after some of the recall work was done, but we never fully trusted that vehicle again. For what it's worth, we still drive a pair of Toyotas.
Yeah, I remember one day just after I got home in my manual VW rabbit, with the the engine still running, the gear in neutral, and my foot on the brake, suddenly the engine revved hard by itself.
I put off the engine, and it has never occurred again as far as I can tell, but no one can convince me that that was not a case of unexplained acceleration due to some internal bug.
Writing a json parser is definitely an educational experience. I wrote one this summer for my own purposes that is decently fast: https://github.com/nwpierce/jsb
https://github.com/nwpierce/jsb/