File an I-765 for a work permit (EAD). You should have done that with the AoS package already. If filed concurrently, it's FREE of charge and after 10 to 12 weeks it'll be in the mail and you can start working.
That said, by now you probably will have your Green Card earlier than 10 to 12 weeks. If you still want to file, attach a copy of your I-485 and a note that this form is filed in connection with your I-485 which has already been submitted.
The EAD will most likely be valid for 1 year. The advantage is that if your wife doesn't meet the income requirements needed for the I-864, your income, since it comes from a US source now, can be counted for that purpose as well if you file your 2014 taxes jointly on January 1, 2015.
Assuming you mean road construction sites?
Aggressive time crunched drivers who do not give a hoot about anyone but themselves. They think the rules do not apply to them.
I have lost several good friends that way and would like to help get the word out. Either slow the hell down, Obey the rules or completely go around the construction zones.
Been to five funerals because of jack a##es like that and I have no use for them at all.