OK, so it was very very cool on Tues, and my bro's pro-moto billet end cap (spark arrestor didn't show up yet) so we went to sand hill instead (the bikes are already red sticker, but I was talking to a ranger in Big Bear and he was telling me they are usually cool with it as long as we have a spark arrestor).
Ironically we saw a Ranger's truck parked about 3/4 of the way in, we just rode and didn't stop, as we were going through some single track a bit further, there was a ranger with a pad of art paper, he bearly even flinched when we went by (his back was to us). Its like we weren't even there (which is fine with me).
of course I go home from the ride and my bro's spark arrestor had arrived, figures.