WD 40 on car brakes, how screwed am I?

[DrRads]

I was cleaning mt car and came up with the bright idea to spray some wd40 in my brake disc and callipers (from outside), 2/3 sprays on each weel , and immediately dawned on me what I just did, I sprayed it with dish washing soapy hot water, let it sit for 10 minutes and rinsed it with cold water (garden hose). After that tested the brakes and seemed good. Then, I drove to halfords to get from brake cleaners (about 20 minutes/ 5 miles) and sprayed a 500ml can evenly on all 4 dics and pads. After an hour or so, I tested the car's braking and its snappy. No slips or anything, stops as well as it should. Ran my finger along the disc and not oily either. (got new brake pads a month ago). And now Im wondering if its still dangerous to drive, on monday, I need to drive about 200 miles on the motorway and not sure what to do.