Behind on THIS? No. Behind on EVERYTHING.
It's not that restraint isn't allowed, per se. There's just nothing that actually spells out what we can and can't do. So, there's nothing telling the local urban fire department that putting the patient prone on the stretcher and holding their arms out like Superman from the airway seat is bad, and nothing telling me that using commercially made soft restraints x 4 with one arm up and one arm down is good. If somebody does actually call for consult, what you usually hear is "Take whatever actions are necessary for the safety of yourself and the patient." Which is both good, and bad.
Closest I've come to an excited delirium was an out of control ETOH which also happened to have a question of a head injury. Restrained by PD prior to arrival, so I just continued that restraint in a different manner after backboarding. Letting somebody out of handcuffs who's promising to kill you is an interesting experience, and it certainly wasn't the cleanest c-spine job I've ever done. But nobody got hurt, which is the important thing. It took something like 15+ milligrams of haldol to put him down enough for the ER to assess him once we got him to the trauma room.