The Day of the Jackal (1973)

Other mistake: Interior Minister Roger Frey advises Commissioner Lebel that all members of the police, military and other security forces attending the ceremonies on the day the Jackal is expected to strike will be issued with lapel badges at the last moment, in case he is going to try to masquerade as one of them. We see hundreds of such people in the next part of the film, including Lebel himself and the CRS private who allows the heavily disguised Jackal through the barricades around the site of the ceremony DeGaulle is due to attend. Only the CRS private wears a lapel badge. Not one of the other police or military officers in attendance is wearing a lapel badge of any kind. (01:58:15)

Lebel: It's obvious that the Jackal has been tipped off all along, and yet he's decided to go ahead, regardless. He's simply challenged the whole lot of us.
Minister: Are you really suggesting that there's a leak from inside this room?
Lebel: I can't say. But we think that the Jackal is now in Paris with a new name and a new face, probably masquerading as a Danish schoolteacher.

Trivia: The Jackal demands $500,000 (US) to assassinate De Gaulle, which seems like a modest amount for such a dangerous job. However, when you take inflation into account that was the equivalent in 2019 money of over $4m. No wonder his putative employers are surprised.

Question: I have seen this movie many times, but one question continues to bother me: How did the Jackal plan to escape if he was successful in shooting the president? (He had already removed his disguise).