Never in a million years would I get into someone's car.
As said above, you can get a taxi to his.
My motto is Trust No One ........... and I stick by that.
I get all sorts of requests that I politely turn down and the guy will say, oh but I am completely harmless/normal/safe etc but for my own personal reasons, I only do what is within my own comfort zone.
Remember, you do NOT have to take every booking you get and you do NOT have to do anything that is out of your comfort zone..............
My friend and I have a sort of motto ourselves.......... if there is any doubt or we question it, then simply don't do it.............. your safety and life is worth far more then the xxx you could have potentially earnt/lost.
Good luck