Even after calling twice and telling them I was driving an HDT tow vehicle, and getting the "that's fine", when we pulled in it was a different story. One of the desk help came charging out the door to meet us at the check-in parking. "We don't allow semis in the park." Asking why the several phone calls, someone said "that's not a problem, we have long sites." His response was again... "no semi-trucks."
Istata is first come basis. Fortunately, we were able to get a spot at Enchanted Trails RV park, with a phone call, west of Albq., off 40. Just for the record, the KOA in the southeast of Albq. is $158/night. So that is not going to happen for us.
This 'no large tow vehicle' ban might be more prevalent on reservations. We've never tried to stay at a reservation park before. Never had a problem in private parks.