Is that false? If they cannot catch you, how can they arrest you?
People have the tendency to greatly overestimate the usefulness of security camera footage in solving crime. Personally, I blame Hollywood.
http://www.guardian.co.uk/uk/2008/may/06/ukcrime1
http://www.thisislondon.co.uk/news/article-23412867-tens-of-...
http://en.wikipedia.org/wiki/Assassination_of_Mahmoud_Al-Mab...
But for the sake of argument, let's assume he is the next Jason Bourne and manages to elude all of Cambridge, Boston, and MIT police on bicycle. What then? They clearly identified him on the street, so he knows they have his face. They also have his prints from the laptop, and the FBI probably has those filed from the PACER incident, so pulling his complete identity is only a matter of time. Staying at his job and place of residence is therefore out of the question. Does he pull a Whitey Bulger and go into hiding in some remote corner of the US? Give up contact with everybody that ever knew him and change his identity? Even Whitey got caught after 17 years, how long do you give a mild-mannered 24 year old with no ties to the criminal underworld? "Running faster" is only putting off the inevitable and adding charges to the docket.
I say this as someone who has never been arrested.
Throwing a constant stream of criticism at those in power keeps the system healthy. There is no reason to let them rule over us and heap them with praise.