My apartment complex has this problem: there is no package office but there is an outer gate. USPS has a key to get inside the gate, but private couriers do no

My apartment complex has this problem: there is no package office but there is an outer gate. USPS has a key to get inside the gate, but private couriers do not, so they can only leave missed delivery notes outside. When USPS does deliver a package, they set it on the ground right inside the gate which is not all that secure either given the gate is occasionally left open by construction workers or maintenance people. The apartment allows us to send packages to their office instead, but it's impractical because their hours mirror work hours. The best alternative I've come up with is to just ship packages to work and accept that I'll mostly miss out on Saturday deliveries.