Was kind of surprised by the skepticism of Home Depot, but understand they're not known for auto lighting. I also respect purchasing through Amazon, as I have ordered many things there.
I liked the price, and the fact that they're a national seller, with local stores. I noticed that the automotive lighting is online only, not carried in stores. While Home Depot doesn't stock auto bulbs, they inventory hundreds of bulbs from most major makers, thus I feel confident these are sourced from a reliable Philips supplier, likely Philips directly. Regardless; upon reading, these are covered under a 90-day return policy. Simply present them at a local store, and get refund.
I'd be more worried about getting fake bulbs from an eBay auction, or a lesser-known website/company. I'll check the markings, codes, etc. and post pics when they arrive.