About 4 years ago, I had a day trip to Philadelphia. I was supposed to meet my client at work and ride up there with him. I opened my car door to get in the car and saw a HUGE brown spider dive for cover. I poked around for awhile, didn't find him, got in the car, and headed out.
I pulled up to a stop sign under a street lamp, and there he was, on the dashboard directly behind the steering wheel, facing me. I threw the car in park to evict this thing, but the motion scared him and he disappeared again. All the way in to the office I was sure I felt him crawling on my legs. Got back after dark and had to drive home, expecting to see him at any moment- never spotted him, but I was sure he was still in the car.
The next day, I bought a whole house's worth of fumigating bombs on the way to work. I got out of the car at work, set all of them off in the car, and closed it up tight.
At lunch time, I opened the car up to let it air out. No sign of the deceased spider.... or any other critters. Never found out what happened to it.