The road to Boulder flat is extremely rough and only suitable for trucks or jeeps. If any other sort of vehicle, I strongly suggest parking in the small plateau at 8500 feet, as described on the Wheeler Peak page. Even getting there might be a challenge depending on your vehicle.
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."