You asked for an autograph simply because the consignee was standing right in front of you? Had he/she not been there, would you have DR'd the package? If you answered "yes" to that then you are padding stops.
When UPS first started making residential deliveries they required a signature at each and every stop. Over time they realized that they could safely deliver the vast majority of these packages without requiring a signature; yes, there would be service failures, but the money saved by not having to run send agains back through the system far outweighed the money lost on the occasional bad DR. When I first started, I was told that UPS "made money on the first attempt, broke even on the second and lost money on the third". This is why they introduced driver release and why they more recently introduced Access Points, which have received a lukewarm reception "If I wanted to go pickup my package I may as well have gone to the store".
Quite simply, if the consignee is standing right in front of you and the package in question is not a high value, you hand it to him/her and go on your way. You do not need (or should get) a signature-----that is stop padding.