We have users that travel all over the world that are set up as limited user accounts on their laptops. Occasionally they go somewhere where they need to install a new type of printer, or a USB card reader, or some other random hardware. Since they are limited users they can't do it.
If they have a network connection it's not a problem because someone from the helpdesk can log on to their computer and install the software for them, or worst case, make them a local admin for the time required to install the device.
The problem is when there's no network connection, we can't give out the local admin password because it's the same across all our laptops. Is there some kind of utility that could be installed by an administrator and then used by limited users in order to elevate them to admin privileges? A company I used to work for had a similar problem with their internal software package and it had an override option with a password that would only work for one day.