[Chemist_Geek]

Do they seize all your belongings for routine traffic violations?

It depends on the severity of the traffic violation, and how belligerent, snotty, and uncooperative the subject is.

[Joe Hadenuf]

I think the operative word here is "routine". And no, no matter how you chop it up, they don't seize your property in routine traffic stops.

[BenR2]

It depends on the severity of the traffic violation, and how belligerent, snotty, and uncooperative the subject is.

Of course: The officers are NEVER belligerent, snotty, and oppressive. (Perhaps you are a cop or related to one to make such an egregiously one-sided statment?)