The context of the following conversation is Sydney worries about blowing a tyre on the highway, she buys two spare tyres even though the car already has one.:
Sydney says I know I already have a spare tyre, but I am so afraid that I'll have a blowout on the highway that I got a second one..
The friend responds Have you ever had a flat?.
Sydney responds Yes, I did last year, and it was really stressful.  I barely made it to the shoulder and then I had to change it myself..
The friend responds Have you thought about getting roadside assist?.
Sydney responds I guess I should do that, then I won't have to worry as much..
The friend responds You really should. I have it and it's really comforting to know if I have an issue on the road, I can just make one call to get it resolved..