You need to provide your name and contact information. Otherwise, you are under no obligation to respond. But don't be an ass about it either. If they ask, "Is that your car," and it's your car, say so; don't just clam up, especially when they can find out it's your car.
In response to your first paragraph, yes.
In response to your second paragraph, politely ask, "am I free to leave now?"
I'd be happy to email some more if you have more follow-up questions. If not, please click ACCEPT so that I can get paid. We can still write after you pay. Feedback and $$$ Bonuses are gratefully appreciated.
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Best of luck to you,
Jane Doe Deer