Actually there is indication that he isn't, since no handicap permit is visible. "Trikes often being ridden by handicap riders" is just anecdotal bullshit that has no bearing on this discussion, idk why you brought it up since it's literally impossible from this pic to tell if the driver has a handicap or not. Not that it matters since they're not parked in any spot whatsoever.
There's a reason they didn't make it a spot, so vehicles with wheelchair ramps can actually function. Otherwise there's not enough room and they'll be trapped in their vehicle. So considerate.
Kitchens can be very greasy places. Do you ever cook food in a pan near your kettle? It could also be from whatever container you poured the hot water in.
I think he was born that way? I don't think the song specified.