I recently had a problem with one of my Jabra earbuds dying. They claimed it was no longer under warranty (even though their website promised a year or two under warranty and it had been only about 8 months). I eventually just gave up and got new earbuds. It pretty much destroyed my view of the company.
Worked on a startup doing something very similar--would recommend against it. As everyone else is saying, the sales process is incredibly long and most local governments just aren't used to buying SaaS. Local partners are important AND you'll need to be very good at sales: can't rely on marketing to bring in customers.
It's a hard business to bootstrap unless you have a large bank account to fall back upon for years while waiting for sales growth to kick in.