How would a (female) Eastern Hercules Beetle get in my basement?

It was found upside down in the basement. It didn't move much and stayed in a shallow pan all night until we released it outside the next morning. All the exterior doors and windows are sealed. There are no known cracks or crevices for it to crawl through, it's possible hidden crevices may exist. We do have a sump pump. We do live in the woods with tons of decaying leaves, and it's been very, very rainy recently.

It's too big to have come in through a door when a person entered/exited. Someone would've seen that thing for sure.

We don't use firewood and haven't brought in any plants from outside. My mom did buy a 25qt size bag of potting soil from the store, but hasn't opened it. It's on the first floor, not the basement.

My father did recently come back from a month long trip to a Central American country where the beetle is more native to. We do have them in this state though. My father has been home one month and stores his suitcase in the basement. Although I think he would've seen the beetle if it had been in the suitcase.

The beetle's measurements were approximately 1.75" to 2" (4.445 cm to 5.08 cm) long and maybe 1" (2.54 cm) wide, not counting the legs, just the body. It was hard to get an accurate measurement, I got creeped out. lol

Any thoughts?

Is it more likely that an egg was brought in on work clothes last summer and fell off in the basement? Even their eggs and larvae are big. It seems like someone would've at least noticed the larvae. Weird, and kind of creepy, but also kind of cool.