Initial reaction:
*flakey ECM or fuel pump relay
*Fuel pump
*Fuel pump has a wiring issue
In park and neutral, there is a rev limiter. Stops abuse and keeps warranty costs down on new vehicles. This is why you engine speed in park responded as it did.
***I owned a car and have drove others that left the factory new with no power steering, no power brakes and a manual tranny. I'm still alive.