It was in Silicon Valley. The company was owned by a huge conglomerate on the east coast, but was mostly left alone and entirely managed from Silicon Valley.
I had worked there for almost 2 years. I was originally hired at about 2/3 of my previous pay (it was a rough time to look for work), and they suspected I was looking around (it's stupid not to at least look once in a while). They tried to retain me by making me a lead over 2 other engineers (don't care) but not by modifying pay, though I made it clear that that would help.
When it was clear I was still looking around, boss called me in to try to get me to sign a "pledge" to stay at the company for 2 years. I refused.
A couple weeks later I got my offer and gave two weeks notice. There were a few meetings with management where they claimed they were going to make a counter offer, but they never actually offered me anything.
That meeting was the last one. Immediately afterward the lead counsel called me in for a meeting and apologized. He said that the other meeting was supposed to be a substantial cash offer (significantly more than Google was offering), but I declined pointing out that I wasn't ever going to be able to work in this town again; certainly not for him at least and the lead counsel said he didn't blame me.
I tried to help with transitions and stuff, but I was told that I'd be paid for my 2 weeks, but to not bother coming in. I hear it didn't go very well after I left.