Did you? Please send off an e-mail to Maggie Wyatt, Moab BLM Manager in support of trail access in Moab.
I said in my e-mail to her "...there are designated trails that 4-wheelers are required to stay on, and denying access to these trails to people like myself will be denying us the right to enjoy the great outdoors Moab has to offer. Every single off-roader I have met (Isuzu,Jeep, or other owner) has been an advocate of the "Tread Lightly" ethic. Enjoying the outdoors responsibly through education and stewardship is stressed at all times. "Stay on the trail.", "Pack it in, pack it out.", and "Leave it better than you found it." are not only rules, but ways of life for us.
There are people that just don't get it, and fail to treat nature's splendor with respect, but I have not seen it in the four-wheeling community. I have seen it quite often on hiking trails around the country, and I will never forget the time in Moab back in 2003 that a mountain biker tossed a soda can onto the ground near where we were stopped for lunch. A friend and I picked up this guy's trash and reprimanded him on his disrespect of this beautiful area. That can might still be laying out there if we had not been there. Respect for nature and the rights of others to explore and enjoy the great outdoors has nothing to do with how you get there (by foot, by bike, by horse, or by 4-wheel drive), but how you conduct yourself while out there."

So people... if you don't speak up, do not be surprised if we are no longer allowed to use the trails around Moab.