Good question. I think you should be OK. However...there is a good chance that an inexperienced operator will leave some burns due to starts and stops, (like my neighbor did). Also there is a good chance that it will be uneven due to stripes of green. Leaving the side deflector down will often leave some big-time green streaks.
Here is hoping that there was no crabgrass control or weed and feed involved.
Let us know what happens. OK? Cool rainy weather headed your way--it should help.