Police do take the cars of illegal immigrants it does not matter if the illegal immigrant did nothing more than drive without a license. In the U.S. it is also a almost standard to take away the houses. accounts (money) and cars of drug criminals that are arrested and found guilty of drug charges and in some cases tax evaders.
But people that have been convicted of driving w/o or driving on a suspended a license for the eighth, ninth or tenth time continue to keep their cars. People that are convicted for their seventh plus DUI worry more about ignition locks, fines and jail time (usually with Huber) than losing their car.
We have Edward Bain School of Language and Art in Kenosha and I will assure anyone that classrooms here do not appear to be segregated in any way or at any time. Although some students speak Ebonics sadly it is not an approved language at this school.
I found about 343 duel language schools within the United States listing at least four from the Chicago Area, I’m also sure that most of these do not have segregated classes either.
http://ebsola.kusd.edu/
http://www.cal.org/jsp/TWI/SchoolListings.jsp

As much as the writer of your copied post might believe her reason for why the classes she saw seemed segregated, I personally do not accept her reasoning as valid. Read her opinion on taking citizens cars in another of her viewpoints

"Will the Olympic bid keep South Side beaches open?"
"So if the alderman and the city want to take the cars of American citizens whose licenses have been suspended, then how come the city and state sells anybody who pays for it plates, stickers and city stickers with no regard for their licensed ability to drive the vehicle?"
http://www.austinweeklynews.com/main.asp?SectionID=3&SubSectionID=3&ArticleID=2214&TM=23158.14

As to the word "banditos" being used at a testimony before congress would it also be unacceptable and debated if some one used ethnically descriptive terms like; mafia boy, drunken leprechaun or nappy headed hoe?
When appearing in places like a city councils, civil court or even before congress the words you choose to use ought to be polite and civil.
I can not speak for what she states occurs in the city of Austin but in my hometown it is as easy as walking up to the cart and looking for the city issued license on front of their carts. If it is not there, I do not care if it is ice cream, hot dogs or tacos for sale, then a phone call will get the cart off the street, complaining in a newspaper viewpoint column is the long way of reporting.
References :

Immigration is a good thing.

On the other hand, illegal immigration is a cancer undoing everything that generations of legal immigrants have done to make this country great.
References :

As for the gathering and the flag waving etc etc by the illegals I can tell you as a LEGAL immigrant to this country it really sticks in my throat to be honest………. if they want to be back there so ffffffing much then don’t let the door hit in the butt GO BACK!!!! But if you want to make progress and better your self then do it the legal way.

Honestly if barry gives this lot amnesty then OMG you have no idea how bad it will become, even more so if you add in the FREE medical he is touting for every person, NOT every citizen but every PERSON [big difference in my eyes]
References :