Could you have blown a fuse, or the realy when you wired them up temporarily?

I would wire the lights up temporarily using a switch, to make sure everything is working correctly, then wire them up through the high beams if you want to operate them that way. I have my driving lights wired to a seperate switch, I kick them on with the headlights and leave them on regardless if I am using high or low beams.

If you were wanting to wire them in with the high beams to avoid a ticket, it isn't necessary, the chances you being ticketed for having them this way is slim to none. Or, if you didn't want to cut a hole in the dash for the switch, just wire the relay to the parking lamps, like 4Crawler did.