Yes sir. The guys next to us that had a fire, BLM just told them to keep an eye on it and make sure it was out before everyone turned in for the night.
Now don't get me wrong, there wasn't an "Animal House" style raging party going on. There was our group having a few beers each evening, other people camped at the bend would come and go, talk about cars, racing, etc. BLM even stopped by one evening and chatted with us for a while. Allowed us to take some pictures that appeared to show my buddy being arrested. (Gotta send some sort of incriminating photos to his wife right?) They were really good sports about it. They stuck around for about thirty minutes or so, and then went on their way.
And for the record, every BLM officer I had the chance to talk to was very courteous and professional. They're just there to make sure you follow the rules. No matter how silly those rules may seem. In my experience, if you're polite and respectful, they will be too.