Welcome, I'm Chris (aka Moose) I'm an independent contractor here at Just Answer.
For now you can remove the negative battery cable to keep from killing the battery.
Will the key turn to the run and start position?
in the run position, is the instrument cluster powering up?
Will it crank and start in neutral?
So far the information you posted is pointing to the park neutral switch not showing it is in park fully and the ignition lock has not released to allow key removal.
Thanks for asking your question and letting me try to help you.
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