Another way to get this achievement is that you :
1) get a level 5 wanted level
2) get to a train station, take out the police helicopter (by hacking it/shoting at the sniper), then get on a train and hack it, so you can easily escape.
Below you can find a video on how you can do it.
Update:
1) According to LAZY SHIKAMARUX:
If you don't want to have negative impact on your reputation, you can also do this
in private free room