Lime away! Don't worry about it. Don't worry about not working it in. Now, this may not apply if you have some major pH troubles, but I doubt that you do.

In our conservation tillage systems, we keep pH's in the mid to upper 6's with less lime required than we had to use to keep them in the low to mid 6's. I think we keep more of it in the field, and with cover crops get improved filtration.