If I'm blasting my house stereo, I get hit with a misdemeanor ticket and fine. If I do it in my car, I lose the car? Doesn't seem consistent to me. I know that bass boomers are obnoxious and I'd like to line up and pimp-slap all of them, but this car seizure thing is ripe for abuse. It's proven time and again that the cops can't handle this kind of authority.
Impound them because they will ignore the ticket. This is not seizing the car, it's just towing it. One tow and they'll get the message.
A respectful person (one who could be trusted to pay the fine in the first place) wouldn't have one of these to begin with.
An ordinance as suggested by Bloody Sam seems reasonable, but they'll buy one over the internet or somesuch.
Tow the car, give them a little pain, end of problem.
You have a point. So... how long before they'll seize an offending house?