Thank you, Xselerate and Rid. I've been trying to research before asking a question .... I know the ALS in my area are using locks much more frequently now. The ERs certainly seem to appreciate it.
Neoboi, I don't see anything you did that was wrong. You got your patient to the hospital quickly and safely, and communicated with everyone. There will always be other opinions and other ways of doing things. If someone suggested something you like, save it and use it going forward. If not, don't worry about it. Everybody's ok. I hope you feel better after everyone's support...