My mum met Larry during the JT tour. When the tickets for a London gig went on sale and fans were queing to buy them, the whole band decided to go off without security and stroll through the crowd, though in a way so not to be noticed.. dressed down and just chatting to random people.
Anyway my mum wasn't there, but at another ticket sale soon after she went down in the hope of a repeat. However this time they turned up in a more grand style, with security and a little speech (or something to that effect. Basically it was just an official public appearance whereas the previous was very much unofficial).
My mum is a Bono nut but when the band met the crowd for autograph signings, she couldn't get to Bono. However Larry noticed her, and decided to sign her an autograph and gave her a kiss. It is her best U2 memory, so I'm told.
So no, Larry is not that nice a guy when it comes to meeting his fans.