SOS Israel's plan to post signs reading "Olmert is running from the police to Annapolis" on buses was shelved by Egged at the last minute, Ynet reported on Sunday.
A member of the right-wing organization said the campaign was meant to "emphasize the absurd situation whereby prime ministers who are under investigation try to escape their predicament by embarking on diplomatic adventures".
A previous example of this, according to the right-wing activist, was seen during former Prime Minister Ariel Sharon's disengagement from Gaza and parts of the West Bank in the summer of 2005.
SOS Israel told Ynet that the signs were to be posted on some 1,000 buses, first in Jerusalem and then throughout the entire country.
The organization said that on Thursday night it was informed that Egged had refused to post the ads on its buses, adding that the cancellation cost the group tens of thousands of shekels. SOS Israel has threatened to sue the bus company.
Egged spokesman Ron Ratner told Ynet that the campaign was canceled on the grounds that it would "divide the nation".