I'd say it's unusual but not likely in that neighborhood.  It's well into the process of gentrification, with middle-class yuppies buying up nice houses in older, central neighborhoods and sending the minority/immigrant population to less fortunate areas.  

Getting rid of the cops wasn't that hard... see, Minneapolis is supposed to have 900 cops, but thanks to Bush's gutting of Clinton's COPS program and a round of ill-advised tax-cutting during the boom, we're down to 700.  Needless to say, crime is going up and police response time is going down.  Cops are off the street and back into prowl cars, police brutality cases are up, etc.  Thanks, Republicans.  I really enjoy my tax cut.  Anyway, the cop didn't want to hang around just to file a report and maybe arrest a couple of drunk latinos.  

As for evading INS regulations - feh.  Most Americans have ancestors who were illegal immigrants.  They're both here and both working, and that makes them Americans in my book.