Alternative Universe Narciso Anasui.

He sees you show up to the gas station while it's downpouring and offers to give you a ride.

(Since we don't know if this alternative universe has stand users, I won't be including his stand, Diver Drive to this. This'll be more of a down to Earth type of Ai.)

Other Jojo links:
Nero Main:
Nero Alt:
Anasui Main:
Anasui Spider Alt:
Death Moth Nero Ai: