Well i for sure wouldn't suggest keepin your car at that speed. As far as how light it feels... yea once i hit 130mph... i was feeling pretty floaty. Dependin on wat ur suspension set up is... that may help a little but i doubt it. And at that speed it takes next to nothing to send you out of control into a wall.
As for cops... it'll take more than a squad car on the side of the road to catch you... trust me. 3 tegs including mine had to slow down after a run to around 140mph and watever cop spotted us had to call in a ghetto bird (helicopter) to catch us.. and by that time we were goin wit the flow of traffic so no hassle. But it was irresponsible on our part and would be to you as well regardless of the time of night. Safe driving my friend.