I think I had this same problem with Mail.app. I "solved" it by creating a separ...

draebek on Sept 14, 2012 | parent | context | favorite | on: OSX password script for everyone to know

I think I had this same problem with Mail.app. I "solved" it by creating a separate keychain that just locks on sleep, but doesn't timeout, and moving my Mail passwords into that keychain. Presumably the same thing would work for iCal.