Nothing much will happen for two years anyway:
"As a first step, the British government must notify the EU of its intention to leave the EU. The EU and the UK will then start negotiations on a withdrawal agreement. This process may take some time. It is not possible to say exactly how long it will take. The Treaty on European Union provides for a period of two years for these negotiations. However, this may be extended with the consent of the UK and all EU member states."