I was just about to purchase $10,001 worth of services from them and have now decided not to because of the computer trespass by the web developer.

According to https://www.cga.ct.gov/2012/rpt/2012-R-0254.htm that makes it a Class B Felony.

Plus the prima facie tort for the lost business.

Are you sure it's such a good idea to go around looking for trouble like this?

There are plenty of legal recovery avenues without going looking for trouble and pretending it's just standing up for yourself - a defense which will go nowhere in a felony hearing.