It's clearly responding to noise. Use that to your advantage. Make sure noises in other directions (like the ride) keep running and try to move as silently as possible away from it.
==> stop the cart and start it again
=> The ride should be loud enough for it to not notice you. Time to go, spy style!
Throw something to the other side of the room--hopefully, the noise will distract it so you can run past.
>>Sneak out. Quietly. Don't attract attention to yourself until you're far enough away that it can't catch up. And if it spots you- BOOK IT.
====> See if you can put the cart in reverse when it gets close enough. surprise it with smashy coaster wheels