Wow, I've got a similar pathway around the right side of my house to get the bike under the balcony on the back of the house...like you, no garage! And the entire front lot is bermuda grass! Fortunately, I learned awhile ago to get both feet down as soon as I get on the grass and just feather the clutch to keep it barely rolling till I get it parked...
Sorry it went down, hope it won't be too hard for your dealer to get it looking new again during the Winter, really glad you didn't get hurt!