Originally Posted by
overthehillmedi
Actually now that HawkOwl has brought up the point about the seams drop by an ambulance station/fire hall, tell them your tale (they'll probably know the lady) and ask if they'll lend you some of their disenfection solution. Spray the he77 out of the seams and seat.
Excellent idea.
Pay particular attention to the seats, where the floor mats abut the side and center of the vehicle, and so forth. In short, everywhere any liquid could have run even if you have no visual evidence it did. If you have any question about a particular place soak it down. Believe me street diseases are nothing to be easily dismissed.