2002 Saturn L200 4 cyl 75,000 miles

We just returned from a vacation that required us to drive through the mountains on I-68 in Western Maryland. As soon as we returned to our home, we noticed a strong gasoline odor in the garage a few minutes after we finished driving. The next morning, after driving 30-40 minutes I looked under the hood to check the transmission fluid and did not detect an odor. As soon as I removed the key, retrieved my lunch from the trunk and walked on the passenger side of the car I noticed the odor again (although not as strong). Could this be a fuel leak? Is the fuel filter clogged? Is it safe to drive? We're planning to take it to Saturn, but wondered what we should ask them to do.