My dad did this a couple of times. Neighbors called the cops for a run away mower LOL no charges were filed. Couple of points, don't leave it unattended, if it flips approach with extreme caution, check field for box turtles and golf balls, don't leave it unattended.
Takes me 20 minutes to cut an 85' radius with my 48" John Deer rider so, I've never tried it myself.
MM