They are coming to take me away ho, ho they are coming to take me away ha, ha they are coming to take me away hee, hee...

Someone had to go with the paramedics earlier today and I saw some things that I did not know.
Didn't know what the black thing was that one paramedic was handing to the other (I assume it's for monitoring vital signs or something like that...)
And then also that ambulances have a license plate cover that folds down when the doors are closed and folds away (or up) when the doors are open, or just can fold down or up at will, have no idea...
And also that they have a lot of tools at their disposal and maybe medications for EMT services...