The front-left drainage hole for my sunroof has become clogged. If I'm parked downhill when it rains, the sunroof ledge just fills up and drips onto the driver's seat.

I've tried blowing air down the hole and shoving a coat hanger down, but no luck.

Any suggestion?
replace the sunroof gasket(s) there are 3 the front one must be bad in your coupe...the tubes are there to safegaurd a bad gasket....you still should unclog the tube but the gaskets are what keeps the car dry ... a dounpour will overwhelm 4 full open dranage tubes...good luck...