The presence of dark matter at the crime scene at Ivo Labs should have been enough to exonerate Frost of that crime, since she did not get her powers from the particle accelerator explosion.
Frost and Chillblaine's fight is supposed to take place in Keystone City; however, Kristen Kramer shows up with the Meta-human Task Force from Central City.
Plus, unless Chillblaine called them, there's no way they could have shown up so conveniently.