Kirby Vacuum scam or casing out the house..?

I just had a young girl, maybe early 20s come to my door and like the sucker I am I said yes. She said she'd be right back and came back with 2 other guys. One of them stayed and her and the other younger guy left.

I could feel my heart pounding but for some reason couldn't ask him to leave. I had my front door open the whole time just in case I needed to run for help. My two young kids were playing upstairs while he was doing his sales pitch. He gave me a flyer and I also asked for business card.

Close to 2 hours later he was done. Not to mention, he kept asking me questions about my husband (who wasn't home at the time of the pitch), what his name is, using my bathroom, and when my husband comes home from work. I am so scared now that they were going around the neighborhood, checking out houses.

I am a stay at home mom with my two young kids and am scared to death, especially since we had a break in back when we lived in GA.

My question to you all fellow Kirby demonstration people is how do you know if this was legit Kirby salesman or people that are looking to steal my stuff...?