Tek, I'm sure he rented it from an NPC, so he can't really ask them "dude, where's my speeder?"
Corban, if you look in your Inventory, under vehicles/piloted vehicles, it should show you the exact position of the speeder. Check that position matches your current location. If it doesn't, walk to the speeder. If the speeder is parked OVER the building, you should be able to go back inside, and then instead of using the "Exit" option, you can use "Enter" (from inside the building) and should be able to select the speeder.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."