You're too kind. I honestly believe they do that (lie) because there's a very good chance they'll get away with it.
I mean, it was only because the cyclist tracks their ride that the driver was caught lying. If that data didn't exist, it would be the driver's word against the cyclist, and because of his injuries, he couldn't remember.
Just imagine had the cyclist died, the family would live out their lives believing their loved one was the cause of his own death. So fucked up. Liars should be reamed out by the court.