Will stadium staff let me go down to the lower bowl to try and get some autographs during pregame warm ups?

Know u will need a field pass that grant u access to do so

You can't get on the field but can get into the lower seating area.

Not sure about that.never tried but i dont see why not

I am not sure, I am never at the game that early. Just ask the next time you go, it will not hurt to try.