What was he doing in Karranah at 5am? The Bahraini equivalent to hanging around Moss Side/Tottenham/Compton at 5am methinks.
It was just after 2.00 am he had just come out of an expat club and he was drunk.
I don't think this can be viewed as an escalation of the protests to attacking western expats.
Driving a car drunk into a village at 2am is not a wise thing to do in any country.