Well, if they're in the US legally, they should have little problem establishing that fact with a police officer. That's no reason to delay implementation of the law if upheld. These ACLU types are beyond despicable.
Don’t be suprised that if SB1070 is favorably ruled on by SCOTUS, every state where Republicans have the lower chambers will call their reps back into session to vote on their own immigration laws.
Sure, there can be 1 million illegals. They will just get their votes in in blue states where it won’t mean squat.