#24,015
Didn't try the Cheat Code in OP before asking this question?
Try saving this in a different slot, exiting, restarting, loading that save in the park. Did you get the option to leave?
If not, and you don't have a previous save -- you'll need to restart.
If you got stuck fast-forwarding through dialogue either with the SKIP button activated or holding down CTRL, I would recommend not skipping as often because Unity can get thrown into a tizzy.
Save every other morning into a new save slot in case you run into bugs, this is an in-development product.