The whole argument of doing searches on personal time is a non-starter.
When you get up in the morning and are getting ready to go to work, are you on company time? When you leave work at the end of the day, you start off at (wait for it) *work! Should the time it takes to get home count as company time?
Grow up!
The people suing are going to be in for a major shock if they start working a salary job someday and end up doing all sorts of stuff for their employers off company time.