Far less evidence than what?
Can you state exactly what your threat model is? As far as I can tell, it's:
* My hair happens to be at the scene of a crime I didn't commit
* The police force 23&me to tell them whose DNA it corresponds to (or the records have already leaked so the police just know)
* I also happen to have the same color and make of car that was seen leaving the seen
* Therefore, the prosecutor successfully tries and convicts me.
Being honest, what do you think is the probability of this sequence of events happening?