pals:

the procedure of acquiring a Visa from UAE embassy first & then getting to Saudi transit visa is no continued any more.

Only who are eligible for "On Arrival" visa can apply to go Dubai via Road. Contact one of many agencies doing visas. They would see your profession on QID & tell if you are eligible to get on arrival visa at UAE border. You will only have to get Saudi Transit Visa thru same agency as you can't approach the embassy directly.