probably not. they want money, not to deliver free service to you.
from ftalist.com/ftafaq.html : Can I use a Dish Network or DirecTV dish and LNBF to pick up FTA channels?

Yes, but not many. There are only a few Dish Network and Bell ExpressVu TV channels, mostly system promos, that a FTA receiver can pick up with Dish/DirecTV equipment. There are a fair number of audio channels in the clear. In general, a Dish/DirecTV setup and a switch can be a cheap way to add this small set of channels, but by itself, it wont give you much reason to buy a FTA receiver.

CALL them direct and ASK.

Try the magic Google, then.