After adding a quart of oil, I inadvertently left the oil reservoir cap off and drove the car a couple of miles. By the time I discovered the problem, two quarts of oil had spurted all over under the hood. I've wiped up as much as possible and replaced the oil. There's still a lot of oil coating things under the hood. Is the car safe to drive, or do I have to take the car in for some kind of thorough under-the-hood cleaning?