Oil Plug head broke off on 1330 F3.

[Sarge707]

Using a torque wrench when I know I should have just Tightened By FEEL like I usually do and the head of the right side Magnet bolt 6mm broke off- Filled with the 4 then 4 1/2 then 5 quarts during timed oil check and No Leak while warm but when cool it is a very slow leak into container. I know the 1 quart in there will slowly leak but wanted the New oil circulated.
Whats the preferred (Easiest ) way to back out the threaded part- It did NOT strip - It just snapped off? Luckily my Ryker should be here in a month .
Dealer said- Punch it - drill hole- then reverse drill to extract. Last time I used a torque wrench was on my 09GS and same thing happened- Since then hand tightening by Feel worker perfect- I don't believe I fell for the same mistake again. NO threads on the head.

Any advice for easiest way to extract because it did not strip.