Most cops I know personally are great guys, come and get you when you're in a bind, whole nine yards...good people. And every one of them that's been on the job awhile thinks he's Remo Williams. Mostly, they don't spend time considering whether they might be destructible, or whether they might be wrong. Dunno; maybe if they did so consider, their internal armor would crack, and they'd have to turn in their wings...or badge...or pouch of fairy dust...or regulation mustache, or whatever. (Only kidding, guys!)
And never mind that a Crown Vic isn't widely reagarded for it's at-the-limit handling. Wasn't there just a story about a biker who went to jail because the cop chasing him became viability-challenged when he lost control of his Vicky at speed?