Confirmed still occurring as of build 0.1.4

I've gone back to double check this now. Cyanspark is correct that his dialogue is working now. I am unsure if perhaps it was a glitch on my end causing him to be unresponsive.

To add, I initially talked to Halite to receive the quest from Red Cross. I was able to pick up the package from Halite, then deliver it to red cross after Proper Procedure talks with you. After this, I was unable to speak with Proper Procedure again after selecting "Don't try to buy me off."

The bug persists until you left click, use the "Talk" option on an npc, or change areas.

I'll weigh in here. The quest also does not seem to actually go into my journal upon acquiring it. In my case, selecting "Do you need some assistance?" again allowed the quest to complete, but "I'm back" did not.