I get this email from W after I respond that time and date is acceptable: "do you want to drive together, to save one of us gas, or do you want to just meet there? Any chance you could help me out at all with the cost of this?"
You COULD ignore, but I don't think this one (at least the "help pay" part of this) will simply go away.
I would reply "No, I don't think either would be appropriate. I have my own costs associated with this, and it's not even something I want. Let me know if the 5th is a problem, so I can plan accordingly."