The continuing education requirements should be looked at as a way to raise the professional status of the engineering profession. You wouldn't want a doctor or dentist who never tried to learn new techniques and treatments beyond medical or dental school, would you? So they're required to go to seminars to keep their licenses. Sometimes the seminars are on cruise ships with a unlimited buffet, but if you wanted that, you should of went to medical school.
So the engineering profession has come up with a somewhat non intrusive way to say we're advancing our technical knowledge. Basically, they pretend to ask for further education, and we pretend to get it. I've used lunchtime presentations by vendors (I actually learn quite a bit from them), discipline group meetings and preparing presentations to the office for PDH credits. On rare occasions, I go to 8 hour ACI seminars. I work for a pretty big company, but I understand that not everyone has access to as many opportunities to earn PDH's as I do. But that doesn't stop me from attending Hilti or Skyline free webinars.
I've been audited several times, so ignore this at your own risk. I have to keep records, which is a pain, but try going through an audit without them.