Except that you are dead wrong on several counts.
For one, an officer cannot make a custodial arrest for an infraction and nor can he take you to the lock up to make sure you see the judge.
For two, if you actually think all traffic violations are "dangerous behavior", you are either naive or dense. "Failure to sign your registration" is obviously incredibly dangerous behavior right along with "license plate light not working" or "license plate swinging".
For three, I don't know of ANY department which considers a traffic stop to be an "arrest" for statistical purposes and I am privy to quite a few. In Indiana, civil infractions are by definition not arrestable offenses. That is why they are civil, not criminal.
If you really want to get all "non-ambiguous" here, a traffic stop for a civil infraction is a Terry-stop limited detention, requiring reasonable suspicion, which by law cannot continue beyond the scope of citing the infraction.
Joe
Amen brother!