Is there a way to confirm this?

[Trek420]

Someone or my mom suggested calling the local sheriff to inquire.

I think I did, also listen to your Mom, your Mom is very wise and is right! They will know of or even offer a good class themselves.

I am not sure I have the time to devote to taking up the sport or art.

It's not an art, it's an addiction Who's got time for it? I sure don't.

Krav Maga- lol. I looked at the site and thought it was a little intense. I don't want to kill anyone, just make them go away and not mess with the little woman on the bike again.

Don't judge by the site, you have to watch the teacher, the class. But yes it's a very intense art to put it mildly.

I used to think Capoeira which is an art developed by Brazilian slaves was pretty but they spend too much time upside down, it's dance-like, looks like fun but would not work etc. And then ... I saw the local master and was just bowled over, so impressed.

How to pick a style
http://www.fudebakudo.com/cgi-bin/mentor.pl

Twice I've used my training. Both times I was fine, perp was not hurt yet apologized (well, it was more like "I'M SORRY, I'M SORRY, I'M SORRY ...." as he ran). I think both guys will have 2nd thoughts about messing with little women again because it could be a surprise.

Coincidentally I have not rode since I heard this but it is because I have had other things to do, not because I am paralyzed in fear.

Of course! Get out and ride