I always thought a vanity plate such as “0OQ1I” could easily evade the authorities.
I imagine single plates like that would already be defeated by calling in "Black Dodge, really annoying license plate that's all ones, Ls and Is"
Filling a security question in with a hard password can be bypassed by "gosh, I didn't know you'd ever use those (because I'm smol and need help!), I just mashed the keyboard". A random word with a few numbers they'll check.