ok here is what has transpired so far.. all contact with him was done via phone, text and email.
1. Asked FFL if his FFL was still valid and if it was ok to ship to him for transfer. His answer was yes and yes (checked to see if his FFL was n fact void ** and it was). He told me to provide the tracking number one I got it (FEDEX) which I did.
** I assume you meant valid, not void.
2. Shipment was delayed by a day and I informed him about it. He said via text, I have to make an appointment for the transfer after it arrives. I had to use his email address, phone and text message before he got back to me.
3. Got notice from shipped that the firearm was in Honolulu and was on the truck to be delivered. Got notification of delivery and who signs for it. Tried contacting him numerous times via text, phone and email over the course of 3 days and nothing was responded to.
That's a problem, given the normal inspection period for shipped firearms averages 3-5 days after delivery.
4. I knew where his place of business is and went there to see if he was in (I assume his business is still in operations but no one was there. I noticed a FEDEX tag on his door which said it was delivered to the business next door. I asked a young lady next door if he is still in business and IF my package was in fact delivered to them by FEDEX. She told me he was still in business and they always take his packages when he’s not in. We found the carton with my firearm and she tried to give it to me but. Explained to her she cannot since it has to go to the FFL holder but asked her to keep it under lock and key until he picks it up.
So far that’s what’s been happening. If I don’t hear anything from him by the end of next week, I’ll be contacting BATFE here letting them know what’s going on and what I can do. As for FEDEX they are not allowed to drop it off at any other address or place of business. They are required to attempt delivery 3 times and if no response are required to return it to the shipper.
That’s about it for now. Hopefully this will iron itself out but I do not recommend using HSG as an FFL transfer dealer. He is very irresponsible as far as I’m concerned. 
The very rare times I complained to an FFL about not getting a notice of transfer delivery from them within a day or two, they waived the FFL fee completely.
Worst case would be if the neighboring business accepted delivery and the firearm got lost (stolen) waiting on the FFL to take possession. If the neighbor doesn't have adequate secure storage for firearms, it becomes an argument over whether she should have been accepting any firearm shipments at all unless she had access to place them in the FFL's secure storage. it seems risky to have a non-FFL who isn't named on the shipping label taking custody of FFL customers' guns.
Next worst case is if there's a problem with the firearm -- wrong firearm, not in the condition as described, damaged, etc. If you exceed the inspection period, it would be up to the seller and FFL to hash out the reasons so the seller agrees to a return since it's not your fault. It's stressful regardless.
Lack of communication is an obvious problem, but I'd be more concerned with someone not in the FFL process receiving shipments. If the FFL can't be there, he should have the items held at the shipper's warehouse until he drives there to take possession or can plan to be there the next day for redelivery. Since you were informing him of the shipment status, he has no reason for not letting you know he wasn't planning to be there to accept delivery.
I get that UPS, FedEx and USPS have no set schedule -- they get there when they get there ..... maybe. That's just the nature of doing business and using commercial shippers.
As for contacting BATFE, first thought is that you might have paid for the firearm, but the seller it the one who transferred the firearm to the FFL and took your money. Maybe contact the seller who might also be an FFL (?) and see if they are interested in filing a complaint. At the moment, you're just out the money, but the FFLs are the ones being tracked by the feds before it's transferred to you. Just a thought.