I would call them and explain and ask if a visit is necessary for Fri. I don't imagine it is, and though you might have gotten it for 'free', it could be turned off or cause you problems on down the road...just my 2 cents.

Is your cable TV on too? If so call them back and tell them you don't need the appointment.

If TV isn't on, what you call "Free" internet is probably a neighbor who doesn't have a secured network. You can only use that so long before you get caught.

Any chance Apt B's prior tenant didn't have their turn off date yet? Or maybe they paid for a full month of service, moved out before their month of Comcast was up (whatever end date that is) and just let it ride out instead of canceling early? Just thinking out loud...

@ gammyt: I never had cable in apt "A," just the internet.

Of course, I could always hook up the co-ax cable to the jack and see if anything shows up.

So what did you do?