gas cap lock for prius c

can't believe im asking this but it was made very apparent to me i now need one of these stupid things.
i had a lot of vandalism done to my car recently in spurts the last left me with a bag of sugar in the tank.

SO now im getting a lock for the tank. that and with gas they way it is people might wanna siphon it where i live or more craziness.

anyone know one that fits the prius c and doesn't cause the check engine light.
because i really DON'T want a repeat of the previous incident.
and it had to happen while it was parked since the restaurant and gas station found nothing on the cameras
sadly only spot with no camera.