To register, turn off your VPN; you can re-enable the VPN after registration. You must maintain an active email address on your account: disposable email addresses cannot be used to register.

It does sound very suspicious. He has probably learned if he drives slowly, he is less likely to get stopped by the cops and you can be sure he has been stopped more times then you know. He has probably even been arrested more than you know. Also, if he is buying street drugs, he wouldn't necessarily need to stop for more than a minute to do the transaction, not even needing to get out of the vehicle. It's amazing how quickly addicts learn to fly below the radar with cops and how to arrange pick ups without being overly noticed. They are usually not as smart as they think, however. Is he coming home high?
There is one other possibilty, but far less likely. Could he just be going for long drives?
Sorry I missed you, Dustin.
I'm glad your parents are being proactive in tracking the car's use.
Hopefully they'll be able to nail his ass - for his own good.
You guys continue to be in my thoughts and prayers.

I hope the vacation is going well.