Gary T, I don't know where you are in the midwest, but in Minnesota, where I'm originally from, and in central Indiana, where I am now, "wait for", meaning to stick around until whoever or whatever arrives or happens, is what you hear, not "wait on". I only hear "wait on" as in a waiter or waitress.

In central Indiana I often hear people taking "license" as a plural, as in "The cop asked for my license, but I'd lost them."

Of course there's where you wait with respect to a line of people (a queue, for you Brits): In the east they wait "on line" or get "on line", but where I've been and where I am now you wait "in line".

Dave Oesterreich