Have you ever been laid off? Two weeks is exactly what you are supposed to get in most cases.
As for the other option: If they were fired, I certainly hope you don't think that this will make me think Mitt Romney is less of a self-entitled scumbag.
Besides, when you fire someone, you look them in the eye and say "you're fired".(If Mitt has trouble with this, he can call his buddy, The Donald for help) You don't quietly revoke all priveleges and change the locks. That's the coward's way out.
On the cases that I have been a colleague to someone who got fired, they were asked to gather their personal belongings in the middle of the day and leave the premises.
Two weeks is what an employee gives as notice, although one could theoretically leave anytime they wanted. The employer could also ask the employee to leave immediately, thus terminating the contract. In either case, a severance is negotiated - or whatever the contract says.
I don't care about what you or anyone else think of Mitt - you're going to paint him and the GOP in a bad light regardless of what happens.
I also don't care how you fire someone - are you going to delay firing someone just because they're not in the office but out in the field? How does that affect the bottom line? Does it delay the so-called "grieving" process that the other employees go through?