Many great responses. I offer this possibility...

Perhaps your management would feel ok about you creating where appropiate, some of your own modules... Then use that directory.

Don't do this if it would be subject to being fired :-) (unless you want another perl job of which there are many to choose from in my neck of the woods)

#!/usr/bin/perl

use lib "/InhouseModuleDir";
[download]

then install the modules in this dir instead of the perl tree, where a admin might only have rights.

Perhaps after you have been using them in dev/test and they've been shown to be "ok". You can get them put in their normal place?