Non-Compete, company paid me inappropriately, can they enforce it?

I had been employed at a local mortgage company for approximately two years. I was terminated four months ago. From the day I started I was a W2 employee and wasn't paid a single dollar for minimum wage, nor was I paid for over time worked (which some months was a lot). They also started paying draws to cover insurance and unemployment taxes (I believe), but later recouped it on the following months commission check. I since then have proceeded to start my own mortgage company. One of the owners has since called me and asked me my intentions. I really didn't get into what they were because I've done everything I can to just be left alone, even though, from what another attorney told me, they were liable for tens of thousands of dollars of back wages, mis appropriated wages, etc...

I want to know if that becaue of this, is my non compete unenforcable and can I proceed to operate my business out in the open without fear of one of the owners trying to file an injunction on me. My non compete states I am not to compete for the next two years, nor am I allowed to work within 100 miles. The leads that my old employer gets come from the internet, the same place I plan on getting my leads from. Besides protecting myself, if I can be relatively assured that my job is protected, I'm tentatively considering filing a lawsuit (class action if possible) against them. I was the longest employed person there along with being a manager and can attest to everything and everyone that was pain inappropriately.