I don't believe front door is relevant. I would say property line. But I don't know for sure. I pulled Kerry signs and I did not measure. They were on the drive in. I figure property line at minimum is a better measure and 100' if less and public property involved.
Heard on WJR that there were long lines in suburban Detroit this morning at poll opening... 100 to 150 people. Of those who called in to talk about voting, those that shared who they voted for, probably around 20, all but 1 said they voted for Bush, 1 sKerry voter.