excess mortar from Lyons(Colorado)sandstone patio

How do we remove excess mortar from a Lyons (Colorado) sandstone patio,
laid a month ago. The grout lines are fine, but the spill over besides
the lines is unsightly. Should we sand, chisel, etch, or just let nature
and foot traffic wear it off. Thanks, Lisa

Sandstone Base

The 100 year old church I belong to has a sandstone foundation. Several years ago someone though it would be a good idea to white wash the sandstone. now the was hand stone is flaking off. We got a quote from one company that wants to "pin" a new face on the existing stone. Is ther anything elese we can do to restore the stone? Please reply to Brandon at crockb@hotmail.com