Car ignition/Emergency Brake issue?

For some reason your E-brake and the ignition circuit have crossed paths. This is what we call a short circuit. Some how the wires have crossed and the result is no ignition. I would be looking at the possibility of a bad E-brake warning switch. This would take a bit to figure out but it does not sound all that bad. A good electrician should have an answer for you in no time. In the interim of then and now, pull the fuse for the E-brake circuit and you should be able to drive it.

There is no connection between the ignition system and the parking brake. So I couldn't venture a guess. It does sound like an electrical problem though, that your mechanic is going to have to sort out. Good luck with it, and let us know what he found out.