WF
I would suggest that your chances of getting a RIS or RAS on a weekend day would be slim to none.
D&D will pin point your position instantly on the magic map as it uses your radio signal to get three bearing. Getting a radar fix may need course changes and may take some time, especially if the channel looks like snow on the screen. Better than nothing, but not the best that's available to you.
If you started calling Mayday to Lille, I suspect they would answer pretty quickly.