I hope it works out OK! I can't imagine you getting more than a stern talking-to from ICE.
The workers at the US consulate here (and I assume in most countries) aren't very friendly or helpful. I think that's because they spend all day dealing with pleas for assistance from idiots who should know better and when a normal guy like you comes in looking for help with a passport they are in no mood. I sat for an hour in the consulate in BCN a couple of years ago listening to one sob story after another: people who had no money and wanted to borrow some, who wandered off and left their purse at the station, who missed a flight and couldn't afford a new ticket, who didn't have a place to stay. It was really amazing. And those people - nearly every one - would get indignant when told that the consulate's job is to represent the government in Spain, not dish out welfare to those who failed to plan for their trip. It's a shame they weren't FTers or they could have come begging here too.