My first new problem, yeah!

I've got a 1980 automatic.

Well here goes: The choke light comes on and a buzzer in the center console is buzzing in and out lightly. Upping the rpm's any above idle and the light goes out and the buzzer off.

I've opened up the center console but besides finding the buzzer I don't know what most things are. I can follow what leads to what but much of it is beyond me.

Pulling off the air cleaner assembly shows me the choke plate open. I didn't check this with the engine being completely cold as i've read it should be done but turned it over a few times and let it run a bit (its also a really hot day). Moving it by hand I cannot close it all the way. That seems to be a problem to me but I don't know what controls the choke plate and couldn't tell where the problem would be. Is my choke just stuck open and will this give me problems for a planned roadtrip or should this be fixed first?

The connector for the heater sensor came up in some searchs as a problem. People indicated they shake lose and whatnot. Mine seems secure and has some wear obvious it looks to be making a conection to me.

I'm a total noob to carburetors.