You were kind to offer the ride, but your instincts were ringing alarm bells to you. Stick with your gut.
Once, on the way home from work, in rural Florida, I was gassing up the Jeep, about halfway home on a 45 minute commute. There was a pretty lady wearing a nice floral print dress, sitting on the curb outside the convenience store. She seemed oddly out of place. After paying for the gas, she stood up and followed me to my vehicle, and asked for a ride to the east. I said that I was going north, then west. "Oh, that's where I need to go! I'll do anything for your help," she said with a smile. My alarms were jangling and buzzing. "No. Sorry," I said and left immediately.
I told my wife about the odd incident, and we both kind of shook our heads. It was less than a week later, while watching television, I jumped up and was pointing at the screen. "That's her!" It was a news story about the arrest of Aileen Wuornos.
Talk about a cold chill down my spine.
Trust your gut.