I would say that it does seem to be carrying some het genes though because it has more keyhole marking than alien head markings though. So to be more clear, in my opinion you have a “Wild Type (aka Alien Head), Possible Het.”
Seems wild type to me too. When you say rescued from Petsmart, I do hope you mean that you didn’t make a purchase? But rather took advantage of an opportunity to adopt an unwanted animal in a store that was closing or something like that.