I have done exactly the same thing albeit a long time ago. Did the guy compensate you with fuel money? This would have been my request before travelling all that way, but when you think there is a good chance of a sale, I guess you just go along with it. Where was your car advertised, I have one of mine up for sale at the moment so I will be interested to see if he contacts me.
I'll tell him to come and view or stick it