Sylon, you are extremely lucky! The only thing I can think of is the evap system that's attached to the battery holder on the underside of your car. I have heard some horror stories on that needing replacement.
Glad no one was hurt. I have learned that these cars are rather interestingly built. When I was rear-ended I thought the bumper took all the force of the impact. When I took it to BMW collision for inspection, they found that there was a bit of damage to the quarter panel too. (This was cause the driver hit me from the corner and not straight on from the rear.) I wouldn't be surprised if your fuel evap system has been affected by the incident.
Hope it all works out!
Venom Build Log
Mods: JB4 G5 ISO, RR DPs, GTHaus Meistershaft Exhaust, RKP GTS Wing, Wagner FMIC, VMR V701s in Scarlet Red, Custom shift knob, Full 1M Body Conversion, and more.
Prius is Latin for impotence.